Home / 19,478.29-29,265.61-12,461.43

Finding the Fourth Proportional to 19,478.29, 29,265.61 and 12,461.43

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Solution

The fourth proportional to 19,478.29, 29,265.61 and 12,461.43 is: 18,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.29 : 29,265.61 = 12,461.43 : x
  2. Step 2: Convert to fraction form
    19,478.29/29,265.61 = 12,461.43/x
  3. Step 3: Cross multiply
    19,478.29x = 29,265.61 × 12,461.43
  4. Step 4: Simplify right side
    19,478.29x = 364,691,350.42
  5. Step 5: Solve for x
    x = 364,691,350.42/19,478.29
  6. Step 6: Final answer
    x = 18,722.97

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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.