Home / 27,876.99-38,470.35-15,130.17

Finding the Fourth Proportional to 27,876.99, 38,470.35 and 15,130.17

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Solution

The fourth proportional to 27,876.99, 38,470.35 and 15,130.17 is: 20,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,876.99 : 38,470.35 = 15,130.17 : x
  2. Step 2: Convert to fraction form
    27,876.99/38,470.35 = 15,130.17/x
  3. Step 3: Cross multiply
    27,876.99x = 38,470.35 × 15,130.17
  4. Step 4: Simplify right side
    27,876.99x = 582,062,935.46
  5. Step 5: Solve for x
    x = 582,062,935.46/27,876.99
  6. Step 6: Final answer
    x = 20,879.69

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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.