Home / 27,847.89-38,432.52-15,275.07

Finding the Fourth Proportional to 27,847.89, 38,432.52 and 15,275.07

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Solution

The fourth proportional to 27,847.89, 38,432.52 and 15,275.07 is: 21,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.89 : 38,432.52 = 15,275.07 : x
  2. Step 2: Convert to fraction form
    27,847.89/38,432.52 = 15,275.07/x
  3. Step 3: Cross multiply
    27,847.89x = 38,432.52 × 15,275.07
  4. Step 4: Simplify right side
    27,847.89x = 587,059,433.28
  5. Step 5: Solve for x
    x = 587,059,433.28/27,847.89
  6. Step 6: Final answer
    x = 21,080.93

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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.