Home / 27,949.13-38,565.55-15,848.95

Finding the Fourth Proportional to 27,949.13, 38,565.55 and 15,848.95

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Solution

The fourth proportional to 27,949.13, 38,565.55 and 15,848.95 is: 21,869.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.13 : 38,565.55 = 15,848.95 : x
  2. Step 2: Convert to fraction form
    27,949.13/38,565.55 = 15,848.95/x
  3. Step 3: Cross multiply
    27,949.13x = 38,565.55 × 15,848.95
  4. Step 4: Simplify right side
    27,949.13x = 611,223,473.67
  5. Step 5: Solve for x
    x = 611,223,473.67/27,949.13
  6. Step 6: Final answer
    x = 21,869.14

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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.