Home / 39,983.13-60,011.28-20,275.29

Finding the Fourth Proportional to 39,983.13, 60,011.28 and 20,275.29

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Solution

The fourth proportional to 39,983.13, 60,011.28 and 20,275.29 is: 30,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.13 : 60,011.28 = 20,275.29 : x
  2. Step 2: Convert to fraction form
    39,983.13/60,011.28 = 20,275.29/x
  3. Step 3: Cross multiply
    39,983.13x = 60,011.28 × 20,275.29
  4. Step 4: Simplify right side
    39,983.13x = 1,216,746,105.27
  5. Step 5: Solve for x
    x = 1,216,746,105.27/39,983.13
  6. Step 6: Final answer
    x = 30,431.49

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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.