Home / 31,752.36-43,792.98-20,423.16

Finding the Fourth Proportional to 31,752.36, 43,792.98 and 20,423.16

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Solution

The fourth proportional to 31,752.36, 43,792.98 and 20,423.16 is: 28,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,752.36 : 43,792.98 = 20,423.16 : x
  2. Step 2: Convert to fraction form
    31,752.36/43,792.98 = 20,423.16/x
  3. Step 3: Cross multiply
    31,752.36x = 43,792.98 × 20,423.16
  4. Step 4: Simplify right side
    31,752.36x = 894,391,037.42
  5. Step 5: Solve for x
    x = 894,391,037.42/31,752.36
  6. Step 6: Final answer
    x = 28,167.70

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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.