Home / 21,740.57-32,617.35-12,500.09

Finding the Fourth Proportional to 21,740.57, 32,617.35 and 12,500.09

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Solution

The fourth proportional to 21,740.57, 32,617.35 and 12,500.09 is: 18,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.57 : 32,617.35 = 12,500.09 : x
  2. Step 2: Convert to fraction form
    21,740.57/32,617.35 = 12,500.09/x
  3. Step 3: Cross multiply
    21,740.57x = 32,617.35 × 12,500.09
  4. Step 4: Simplify right side
    21,740.57x = 407,719,647.47
  5. Step 5: Solve for x
    x = 407,719,647.47/21,740.57
  6. Step 6: Final answer
    x = 18,753.87

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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.