Home / 39,235.17-54,145.49-21,331.16

Finding the Fourth Proportional to 39,235.17, 54,145.49 and 21,331.16

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Solution

The fourth proportional to 39,235.17, 54,145.49 and 21,331.16 is: 29,437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,235.17 : 54,145.49 = 21,331.16 : x
  2. Step 2: Convert to fraction form
    39,235.17/54,145.49 = 21,331.16/x
  3. Step 3: Cross multiply
    39,235.17x = 54,145.49 × 21,331.16
  4. Step 4: Simplify right side
    39,235.17x = 1,154,986,110.47
  5. Step 5: Solve for x
    x = 1,154,986,110.47/39,235.17
  6. Step 6: Final answer
    x = 29,437.52

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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.