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Finding the Fourth Proportional to 29,144.79, 43,702.11 and 9,420.77

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Solution

The fourth proportional to 29,144.79, 43,702.11 and 9,420.77 is: 14,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,144.79 : 43,702.11 = 9,420.77 : x
  2. Step 2: Convert to fraction form
    29,144.79/43,702.11 = 9,420.77/x
  3. Step 3: Cross multiply
    29,144.79x = 43,702.11 × 9,420.77
  4. Step 4: Simplify right side
    29,144.79x = 411,707,308.31
  5. Step 5: Solve for x
    x = 411,707,308.31/29,144.79
  6. Step 6: Final answer
    x = 14,126.27

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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.