Home / 17,931.45-26,897.15-5,451.42

Finding the Fourth Proportional to 17,931.45, 26,897.15 and 5,451.42

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Solution

The fourth proportional to 17,931.45, 26,897.15 and 5,451.42 is: 8,177.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931.45 : 26,897.15 = 5,451.42 : x
  2. Step 2: Convert to fraction form
    17,931.45/26,897.15 = 5,451.42/x
  3. Step 3: Cross multiply
    17,931.45x = 26,897.15 × 5,451.42
  4. Step 4: Simplify right side
    17,931.45x = 146,627,634.20
  5. Step 5: Solve for x
    x = 146,627,634.20/17,931.45
  6. Step 6: Final answer
    x = 8,177.12

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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.