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Finding the Fourth Proportional to 17,460.20, 26,139.10 and 15,412.20

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Solution

The fourth proportional to 17,460.20, 26,139.10 and 15,412.20 is: 23,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,460.20 : 26,139.10 = 15,412.20 : x
  2. Step 2: Convert to fraction form
    17,460.20/26,139.10 = 15,412.20/x
  3. Step 3: Cross multiply
    17,460.20x = 26,139.10 × 15,412.20
  4. Step 4: Simplify right side
    17,460.20x = 402,861,037.02
  5. Step 5: Solve for x
    x = 402,861,037.02/17,460.20
  6. Step 6: Final answer
    x = 23,073.11

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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.