Home / 39,030.85-53,862.42-21,126.16

Finding the Fourth Proportional to 39,030.85, 53,862.42 and 21,126.16

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Solution

The fourth proportional to 39,030.85, 53,862.42 and 21,126.16 is: 29,154.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.85 : 53,862.42 = 21,126.16 : x
  2. Step 2: Convert to fraction form
    39,030.85/53,862.42 = 21,126.16/x
  3. Step 3: Cross multiply
    39,030.85x = 53,862.42 × 21,126.16
  4. Step 4: Simplify right side
    39,030.85x = 1,137,906,102.91
  5. Step 5: Solve for x
    x = 1,137,906,102.91/39,030.85
  6. Step 6: Final answer
    x = 29,154.02

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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.