Home / 27,877.23-38,470.61-15,130.41

Finding the Fourth Proportional to 27,877.23, 38,470.61 and 15,130.41

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Solution

The fourth proportional to 27,877.23, 38,470.61 and 15,130.41 is: 20,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.23 : 38,470.61 = 15,130.41 : x
  2. Step 2: Convert to fraction form
    27,877.23/38,470.61 = 15,130.41/x
  3. Step 3: Cross multiply
    27,877.23x = 38,470.61 × 15,130.41
  4. Step 4: Simplify right side
    27,877.23x = 582,076,026.60
  5. Step 5: Solve for x
    x = 582,076,026.60/27,877.23
  6. Step 6: Final answer
    x = 20,879.98

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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.