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Finding the Fourth Proportional to 29,276.80, 43,864.80 and 13,662.40

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Solution

The fourth proportional to 29,276.80, 43,864.80 and 13,662.40 is: 20,470.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,276.80 : 43,864.80 = 13,662.40 : x
  2. Step 2: Convert to fraction form
    29,276.80/43,864.80 = 13,662.40/x
  3. Step 3: Cross multiply
    29,276.80x = 43,864.80 × 13,662.40
  4. Step 4: Simplify right side
    29,276.80x = 599,298,443.52
  5. Step 5: Solve for x
    x = 599,298,443.52/29,276.80
  6. Step 6: Final answer
    x = 20,470.08

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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.