Home / 19,740.13-29,618.39-8,641.10

Finding the Fourth Proportional to 19,740.13, 29,618.39 and 8,641.10

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Solution

The fourth proportional to 19,740.13, 29,618.39 and 8,641.10 is: 12,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.13 : 29,618.39 = 8,641.10 : x
  2. Step 2: Convert to fraction form
    19,740.13/29,618.39 = 8,641.10/x
  3. Step 3: Cross multiply
    19,740.13x = 29,618.39 × 8,641.10
  4. Step 4: Simplify right side
    19,740.13x = 255,935,565.48
  5. Step 5: Solve for x
    x = 255,935,565.48/19,740.13
  6. Step 6: Final answer
    x = 12,965.24

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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.