Home / 38,422.03-53,022.63-21,427.35

Finding the Fourth Proportional to 38,422.03, 53,022.63 and 21,427.35

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Solution

The fourth proportional to 38,422.03, 53,022.63 and 21,427.35 is: 29,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,422.03 : 53,022.63 = 21,427.35 : x
  2. Step 2: Convert to fraction form
    38,422.03/53,022.63 = 21,427.35/x
  3. Step 3: Cross multiply
    38,422.03x = 53,022.63 × 21,427.35
  4. Step 4: Simplify right side
    38,422.03x = 1,136,134,211.92
  5. Step 5: Solve for x
    x = 1,136,134,211.92/38,422.03
  6. Step 6: Final answer
    x = 29,569.86

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Half scale
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Double scale
Find fourth proportional to 38,423.03, 53,024.01 and 21,428.35
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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.