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Finding the Fourth Proportional to 27,542.88, 38,002.88 and 15,603.48

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Solution

The fourth proportional to 27,542.88, 38,002.88 and 15,603.48 is: 21,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,542.88 : 38,002.88 = 15,603.48 : x
  2. Step 2: Convert to fraction form
    27,542.88/38,002.88 = 15,603.48/x
  3. Step 3: Cross multiply
    27,542.88x = 38,002.88 × 15,603.48
  4. Step 4: Simplify right side
    27,542.88x = 592,977,178.02
  5. Step 5: Solve for x
    x = 592,977,178.02/27,542.88
  6. Step 6: Final answer
    x = 21,529.24

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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.