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Finding the Fourth Proportional to 43,552.80, 65,329.56 and 13,970.88

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Solution

The fourth proportional to 43,552.80, 65,329.56 and 13,970.88 is: 20,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,552.80 : 65,329.56 = 13,970.88 : x
  2. Step 2: Convert to fraction form
    43,552.80/65,329.56 = 13,970.88/x
  3. Step 3: Cross multiply
    43,552.80x = 65,329.56 × 13,970.88
  4. Step 4: Simplify right side
    43,552.80x = 912,711,443.21
  5. Step 5: Solve for x
    x = 912,711,443.21/43,552.80
  6. Step 6: Final answer
    x = 20,956.44

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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.