Home / 19,432.20-29,148.30-13,195.20

Finding the Fourth Proportional to 19,432.20, 29,148.30 and 13,195.20

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Solution

The fourth proportional to 19,432.20, 29,148.30 and 13,195.20 is: 19,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.20 : 29,148.30 = 13,195.20 : x
  2. Step 2: Convert to fraction form
    19,432.20/29,148.30 = 13,195.20/x
  3. Step 3: Cross multiply
    19,432.20x = 29,148.30 × 13,195.20
  4. Step 4: Simplify right side
    19,432.20x = 384,617,648.16
  5. Step 5: Solve for x
    x = 384,617,648.16/19,432.20
  6. Step 6: Final answer
    x = 19,792.80

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Double scale
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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.