Home / 27,862.31-38,439.90-18,307.34

Finding the Fourth Proportional to 27,862.31, 38,439.90 and 18,307.34

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Solution

The fourth proportional to 27,862.31, 38,439.90 and 18,307.34 is: 25,257.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,862.31 : 38,439.90 = 18,307.34 : x
  2. Step 2: Convert to fraction form
    27,862.31/38,439.90 = 18,307.34/x
  3. Step 3: Cross multiply
    27,862.31x = 38,439.90 × 18,307.34
  4. Step 4: Simplify right side
    27,862.31x = 703,732,318.87
  5. Step 5: Solve for x
    x = 703,732,318.87/27,862.31
  6. Step 6: Final answer
    x = 25,257.50

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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.