Home / 27,753.22-38,299.35-15,178.78

Finding the Fourth Proportional to 27,753.22, 38,299.35 and 15,178.78

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Solution

The fourth proportional to 27,753.22, 38,299.35 and 15,178.78 is: 20,946.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,753.22 : 38,299.35 = 15,178.78 : x
  2. Step 2: Convert to fraction form
    27,753.22/38,299.35 = 15,178.78/x
  3. Step 3: Cross multiply
    27,753.22x = 38,299.35 × 15,178.78
  4. Step 4: Simplify right side
    27,753.22x = 581,337,407.79
  5. Step 5: Solve for x
    x = 581,337,407.79/27,753.22
  6. Step 6: Final answer
    x = 20,946.67

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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.