Home / 27,947.72-38,567.22-15,372.68

Finding the Fourth Proportional to 27,947.72, 38,567.22 and 15,372.68

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Solution

The fourth proportional to 27,947.72, 38,567.22 and 15,372.68 is: 21,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.72 : 38,567.22 = 15,372.68 : x
  2. Step 2: Convert to fraction form
    27,947.72/38,567.22 = 15,372.68/x
  3. Step 3: Cross multiply
    27,947.72x = 38,567.22 × 15,372.68
  4. Step 4: Simplify right side
    27,947.72x = 592,881,531.55
  5. Step 5: Solve for x
    x = 592,881,531.55/27,947.72
  6. Step 6: Final answer
    x = 21,213.95

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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.