Home / 21,740.07-32,616.60-12,499.59

Finding the Fourth Proportional to 21,740.07, 32,616.60 and 12,499.59

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Solution

The fourth proportional to 21,740.07, 32,616.60 and 12,499.59 is: 18,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.07 : 32,616.60 = 12,499.59 : x
  2. Step 2: Convert to fraction form
    21,740.07/32,616.60 = 12,499.59/x
  3. Step 3: Cross multiply
    21,740.07x = 32,616.60 × 12,499.59
  4. Step 4: Simplify right side
    21,740.07x = 407,693,964.11
  5. Step 5: Solve for x
    x = 407,693,964.11/21,740.07
  6. Step 6: Final answer
    x = 18,753.12

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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.