Home / 19,426.13-29,140.67-5,386

Finding the Fourth Proportional to 19,426.13, 29,140.67 and 5,386

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Solution

The fourth proportional to 19,426.13, 29,140.67 and 5,386 is: 8,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.13 : 29,140.67 = 5,386 : x
  2. Step 2: Convert to fraction form
    19,426.13/29,140.67 = 5,386/x
  3. Step 3: Cross multiply
    19,426.13x = 29,140.67 × 5,386
  4. Step 4: Simplify right side
    19,426.13x = 156,951,648.62
  5. Step 5: Solve for x
    x = 156,951,648.62/19,426.13
  6. Step 6: Final answer
    x = 8,079.41

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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.