Home / 22,548.68-31,119.48-12,988.88

Finding the Fourth Proportional to 22,548.68, 31,119.48 and 12,988.88

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Solution

The fourth proportional to 22,548.68, 31,119.48 and 12,988.88 is: 17,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,548.68 : 31,119.48 = 12,988.88 : x
  2. Step 2: Convert to fraction form
    22,548.68/31,119.48 = 12,988.88/x
  3. Step 3: Cross multiply
    22,548.68x = 31,119.48 × 12,988.88
  4. Step 4: Simplify right side
    22,548.68x = 404,207,191.38
  5. Step 5: Solve for x
    x = 404,207,191.38/22,548.68
  6. Step 6: Final answer
    x = 17,925.98

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Double scale
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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.