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Finding the Fourth Proportional to 29,124.60, 43,686.90 and 19,908.60

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Solution

The fourth proportional to 29,124.60, 43,686.90 and 19,908.60 is: 29,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124.60 : 43,686.90 = 19,908.60 : x
  2. Step 2: Convert to fraction form
    29,124.60/43,686.90 = 19,908.60/x
  3. Step 3: Cross multiply
    29,124.60x = 43,686.90 × 19,908.60
  4. Step 4: Simplify right side
    29,124.60x = 869,745,017.34
  5. Step 5: Solve for x
    x = 869,745,017.34/29,124.60
  6. Step 6: Final answer
    x = 29,862.90

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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.