Home / 20,294.59-27,988.40-12,741.62

Finding the Fourth Proportional to 20,294.59, 27,988.40 and 12,741.62

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Solution

The fourth proportional to 20,294.59, 27,988.40 and 12,741.62 is: 17,572.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.59 : 27,988.40 = 12,741.62 : x
  2. Step 2: Convert to fraction form
    20,294.59/27,988.40 = 12,741.62/x
  3. Step 3: Cross multiply
    20,294.59x = 27,988.40 × 12,741.62
  4. Step 4: Simplify right side
    20,294.59x = 356,617,534.88
  5. Step 5: Solve for x
    x = 356,617,534.88/20,294.59
  6. Step 6: Final answer
    x = 17,572.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.