Home / 39,723.52-59,532.16-20,999.20

Finding the Fourth Proportional to 39,723.52, 59,532.16 and 20,999.20

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Solution

The fourth proportional to 39,723.52, 59,532.16 and 20,999.20 is: 31,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,723.52 : 59,532.16 = 20,999.20 : x
  2. Step 2: Convert to fraction form
    39,723.52/59,532.16 = 20,999.20/x
  3. Step 3: Cross multiply
    39,723.52x = 59,532.16 × 20,999.20
  4. Step 4: Simplify right side
    39,723.52x = 1,250,127,734.27
  5. Step 5: Solve for x
    x = 1,250,127,734.27/39,723.52
  6. Step 6: Final answer
    x = 31,470.72

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1.5x scale

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.