Home / 38,220.16-52,743.68-21,453.12

Finding the Fourth Proportional to 38,220.16, 52,743.68 and 21,453.12

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Solution

The fourth proportional to 38,220.16, 52,743.68 and 21,453.12 is: 29,605.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,220.16 : 52,743.68 = 21,453.12 : x
  2. Step 2: Convert to fraction form
    38,220.16/52,743.68 = 21,453.12/x
  3. Step 3: Cross multiply
    38,220.16x = 52,743.68 × 21,453.12
  4. Step 4: Simplify right side
    38,220.16x = 1,131,516,496.28
  5. Step 5: Solve for x
    x = 1,131,516,496.28/38,220.16
  6. Step 6: Final answer
    x = 29,605.23

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Half scale
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Double scale
Find fourth proportional to 38,221.16, 52,745.06 and 21,454.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.