Home / 21,250.11-31,874.81-7,398.75

Finding the Fourth Proportional to 21,250.11, 31,874.81 and 7,398.75

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Solution

The fourth proportional to 21,250.11, 31,874.81 and 7,398.75 is: 11,098.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.11 : 31,874.81 = 7,398.75 : x
  2. Step 2: Convert to fraction form
    21,250.11/31,874.81 = 7,398.75/x
  3. Step 3: Cross multiply
    21,250.11x = 31,874.81 × 7,398.75
  4. Step 4: Simplify right side
    21,250.11x = 235,833,713.49
  5. Step 5: Solve for x
    x = 235,833,713.49/21,250.11
  6. Step 6: Final answer
    x = 11,098.00

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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.