Home / 19,414.91-29,117.55-8,320.34

Finding the Fourth Proportional to 19,414.91, 29,117.55 and 8,320.34

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Solution

The fourth proportional to 19,414.91, 29,117.55 and 8,320.34 is: 12,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,414.91 : 29,117.55 = 8,320.34 : x
  2. Step 2: Convert to fraction form
    19,414.91/29,117.55 = 8,320.34/x
  3. Step 3: Cross multiply
    19,414.91x = 29,117.55 × 8,320.34
  4. Step 4: Simplify right side
    19,414.91x = 242,267,915.97
  5. Step 5: Solve for x
    x = 242,267,915.97/19,414.91
  6. Step 6: Final answer
    x = 12,478.45

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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.