Home / 27,807.38-38,374.31-15,060.72

Finding the Fourth Proportional to 27,807.38, 38,374.31 and 15,060.72

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Solution

The fourth proportional to 27,807.38, 38,374.31 and 15,060.72 is: 20,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.38 : 38,374.31 = 15,060.72 : x
  2. Step 2: Convert to fraction form
    27,807.38/38,374.31 = 15,060.72/x
  3. Step 3: Cross multiply
    27,807.38x = 38,374.31 × 15,060.72
  4. Step 4: Simplify right side
    27,807.38x = 577,944,518.90
  5. Step 5: Solve for x
    x = 577,944,518.90/27,807.38
  6. Step 6: Final answer
    x = 20,783.85

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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.