Home / 27,762.12-38,311.68-15,186.87

Finding the Fourth Proportional to 27,762.12, 38,311.68 and 15,186.87

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Solution

The fourth proportional to 27,762.12, 38,311.68 and 15,186.87 is: 20,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.12 : 38,311.68 = 15,186.87 : x
  2. Step 2: Convert to fraction form
    27,762.12/38,311.68 = 15,186.87/x
  3. Step 3: Cross multiply
    27,762.12x = 38,311.68 × 15,186.87
  4. Step 4: Simplify right side
    27,762.12x = 581,834,503.64
  5. Step 5: Solve for x
    x = 581,834,503.64/27,762.12
  6. Step 6: Final answer
    x = 20,957.86

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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.