Home / 27,870.11-41,789.59-9,145.14

Finding the Fourth Proportional to 27,870.11, 41,789.59 and 9,145.14

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Solution

The fourth proportional to 27,870.11, 41,789.59 and 9,145.14 is: 13,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,870.11 : 41,789.59 = 9,145.14 : x
  2. Step 2: Convert to fraction form
    27,870.11/41,789.59 = 9,145.14/x
  3. Step 3: Cross multiply
    27,870.11x = 41,789.59 × 9,145.14
  4. Step 4: Simplify right side
    27,870.11x = 382,171,471.52
  5. Step 5: Solve for x
    x = 382,171,471.52/27,870.11
  6. Step 6: Final answer
    x = 13,712.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.