Home / 27,127.76-40,686.17-18,882.77

Finding the Fourth Proportional to 27,127.76, 40,686.17 and 18,882.77

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Solution

The fourth proportional to 27,127.76, 40,686.17 and 18,882.77 is: 28,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,127.76 : 40,686.17 = 18,882.77 : x
  2. Step 2: Convert to fraction form
    27,127.76/40,686.17 = 18,882.77/x
  3. Step 3: Cross multiply
    27,127.76x = 40,686.17 × 18,882.77
  4. Step 4: Simplify right side
    27,127.76x = 768,267,292.45
  5. Step 5: Solve for x
    x = 768,267,292.45/27,127.76
  6. Step 6: Final answer
    x = 28,320.34

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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.