Home / 27,714.75-38,246.55-15,139.50

Finding the Fourth Proportional to 27,714.75, 38,246.55 and 15,139.50

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Solution

The fourth proportional to 27,714.75, 38,246.55 and 15,139.50 is: 20,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,714.75 : 38,246.55 = 15,139.50 : x
  2. Step 2: Convert to fraction form
    27,714.75/38,246.55 = 15,139.50/x
  3. Step 3: Cross multiply
    27,714.75x = 38,246.55 × 15,139.50
  4. Step 4: Simplify right side
    27,714.75x = 579,033,643.73
  5. Step 5: Solve for x
    x = 579,033,643.73/27,714.75
  6. Step 6: Final answer
    x = 20,892.62

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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.