Home / 27,877.24-38,470.61-15,130.42

Finding the Fourth Proportional to 27,877.24, 38,470.61 and 15,130.42

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Solution

The fourth proportional to 27,877.24, 38,470.61 and 15,130.42 is: 20,879.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.24 : 38,470.61 = 15,130.42 : x
  2. Step 2: Convert to fraction form
    27,877.24/38,470.61 = 15,130.42/x
  3. Step 3: Cross multiply
    27,877.24x = 38,470.61 × 15,130.42
  4. Step 4: Simplify right side
    27,877.24x = 582,076,315.13
  5. Step 5: Solve for x
    x = 582,076,315.13/27,877.24
  6. Step 6: Final answer
    x = 20,879.99

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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.