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Finding the Fourth Proportional to 35,503.28, 53,254.92 and 12,129.92

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Solution

The fourth proportional to 35,503.28, 53,254.92 and 12,129.92 is: 18,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,503.28 : 53,254.92 = 12,129.92 : x
  2. Step 2: Convert to fraction form
    35,503.28/53,254.92 = 12,129.92/x
  3. Step 3: Cross multiply
    35,503.28x = 53,254.92 × 12,129.92
  4. Step 4: Simplify right side
    35,503.28x = 645,977,919.21
  5. Step 5: Solve for x
    x = 645,977,919.21/35,503.28
  6. Step 6: Final answer
    x = 18,194.88

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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.