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Finding the Fourth Proportional to 29,159.60, 43,791.24 and 20,411.60

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Solution

The fourth proportional to 29,159.60, 43,791.24 and 20,411.60 is: 30,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,159.60 : 43,791.24 = 20,411.60 : x
  2. Step 2: Convert to fraction form
    29,159.60/43,791.24 = 20,411.60/x
  3. Step 3: Cross multiply
    29,159.60x = 43,791.24 × 20,411.60
  4. Step 4: Simplify right side
    29,159.60x = 893,849,274.38
  5. Step 5: Solve for x
    x = 893,849,274.38/29,159.60
  6. Step 6: Final answer
    x = 30,653.69

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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.