Home / 19,630.40-29,445.60-19,338.80

Finding the Fourth Proportional to 19,630.40, 29,445.60 and 19,338.80

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Solution

The fourth proportional to 19,630.40, 29,445.60 and 19,338.80 is: 29,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.40 : 29,445.60 = 19,338.80 : x
  2. Step 2: Convert to fraction form
    19,630.40/29,445.60 = 19,338.80/x
  3. Step 3: Cross multiply
    19,630.40x = 29,445.60 × 19,338.80
  4. Step 4: Simplify right side
    19,630.40x = 569,442,569.28
  5. Step 5: Solve for x
    x = 569,442,569.28/19,630.40
  6. Step 6: Final answer
    x = 29,008.20

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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.