Home / 21,456.12-32,140.08-10,329.96

Finding the Fourth Proportional to 21,456.12, 32,140.08 and 10,329.96

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Solution

The fourth proportional to 21,456.12, 32,140.08 and 10,329.96 is: 15,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.12 : 32,140.08 = 10,329.96 : x
  2. Step 2: Convert to fraction form
    21,456.12/32,140.08 = 10,329.96/x
  3. Step 3: Cross multiply
    21,456.12x = 32,140.08 × 10,329.96
  4. Step 4: Simplify right side
    21,456.12x = 332,005,740.80
  5. Step 5: Solve for x
    x = 332,005,740.80/21,456.12
  6. Step 6: Final answer
    x = 15,473.71

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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.