Home / 23,124.28-31,911.51-12,513.92

Finding the Fourth Proportional to 23,124.28, 31,911.51 and 12,513.92

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Solution

The fourth proportional to 23,124.28, 31,911.51 and 12,513.92 is: 17,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,124.28 : 31,911.51 = 12,513.92 : x
  2. Step 2: Convert to fraction form
    23,124.28/31,911.51 = 12,513.92/x
  3. Step 3: Cross multiply
    23,124.28x = 31,911.51 × 12,513.92
  4. Step 4: Simplify right side
    23,124.28x = 399,337,861.09
  5. Step 5: Solve for x
    x = 399,337,861.09/23,124.28
  6. Step 6: Final answer
    x = 17,269.20

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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.