Home / 27,520.99-37,985.76-15,591.38

Finding the Fourth Proportional to 27,520.99, 37,985.76 and 15,591.38

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Solution

The fourth proportional to 27,520.99, 37,985.76 and 15,591.38 is: 21,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,520.99 : 37,985.76 = 15,591.38 : x
  2. Step 2: Convert to fraction form
    27,520.99/37,985.76 = 15,591.38/x
  3. Step 3: Cross multiply
    27,520.99x = 37,985.76 × 15,591.38
  4. Step 4: Simplify right side
    27,520.99x = 592,250,228.82
  5. Step 5: Solve for x
    x = 592,250,228.82/27,520.99
  6. Step 6: Final answer
    x = 21,519.95

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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.