Home / 19,491.20-29,238.65-5,451.23

Finding the Fourth Proportional to 19,491.20, 29,238.65 and 5,451.23

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Solution

The fourth proportional to 19,491.20, 29,238.65 and 5,451.23 is: 8,177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.20 : 29,238.65 = 5,451.23 : x
  2. Step 2: Convert to fraction form
    19,491.20/29,238.65 = 5,451.23/x
  3. Step 3: Cross multiply
    19,491.20x = 29,238.65 × 5,451.23
  4. Step 4: Simplify right side
    19,491.20x = 159,386,432.59
  5. Step 5: Solve for x
    x = 159,386,432.59/19,491.20
  6. Step 6: Final answer
    x = 8,177.36

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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.