Home / 27,842.71-38,423.20-15,095.86

Finding the Fourth Proportional to 27,842.71, 38,423.20 and 15,095.86

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Solution

The fourth proportional to 27,842.71, 38,423.20 and 15,095.86 is: 20,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,842.71 : 38,423.20 = 15,095.86 : x
  2. Step 2: Convert to fraction form
    27,842.71/38,423.20 = 15,095.86/x
  3. Step 3: Cross multiply
    27,842.71x = 38,423.20 × 15,095.86
  4. Step 4: Simplify right side
    27,842.71x = 580,031,247.95
  5. Step 5: Solve for x
    x = 580,031,247.95/27,842.71
  6. Step 6: Final answer
    x = 20,832.43

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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.