Home / 39,661.28-59,475-20,929.52

Finding the Fourth Proportional to 39,661.28, 59,475 and 20,929.52

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Solution

The fourth proportional to 39,661.28, 59,475 and 20,929.52 is: 31,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,661.28 : 59,475 = 20,929.52 : x
  2. Step 2: Convert to fraction form
    39,661.28/59,475 = 20,929.52/x
  3. Step 3: Cross multiply
    39,661.28x = 59,475 × 20,929.52
  4. Step 4: Simplify right side
    39,661.28x = 1,244,783,202
  5. Step 5: Solve for x
    x = 1,244,783,202/39,661.28
  6. Step 6: Final answer
    x = 31,385.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.