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Finding the Fourth Proportional to 29,200.80, 43,750.80 and 13,586.40

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Solution

The fourth proportional to 29,200.80, 43,750.80 and 13,586.40 is: 20,356.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,200.80 : 43,750.80 = 13,586.40 : x
  2. Step 2: Convert to fraction form
    29,200.80/43,750.80 = 13,586.40/x
  3. Step 3: Cross multiply
    29,200.80x = 43,750.80 × 13,586.40
  4. Step 4: Simplify right side
    29,200.80x = 594,415,869.12
  5. Step 5: Solve for x
    x = 594,415,869.12/29,200.80
  6. Step 6: Final answer
    x = 20,356.15

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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.