Home / 38,218.68-52,742.70-21,453.24

Finding the Fourth Proportional to 38,218.68, 52,742.70 and 21,453.24

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Solution

The fourth proportional to 38,218.68, 52,742.70 and 21,453.24 is: 29,605.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.68 : 52,742.70 = 21,453.24 : x
  2. Step 2: Convert to fraction form
    38,218.68/52,742.70 = 21,453.24/x
  3. Step 3: Cross multiply
    38,218.68x = 52,742.70 × 21,453.24
  4. Step 4: Simplify right side
    38,218.68x = 1,131,501,801.35
  5. Step 5: Solve for x
    x = 1,131,501,801.35/38,218.68
  6. Step 6: Final answer
    x = 29,605.99

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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.