Home / 27,877.56-38,470.01-15,130.47

Finding the Fourth Proportional to 27,877.56, 38,470.01 and 15,130.47

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Solution

The fourth proportional to 27,877.56, 38,470.01 and 15,130.47 is: 20,879.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.56 : 38,470.01 = 15,130.47 : x
  2. Step 2: Convert to fraction form
    27,877.56/38,470.01 = 15,130.47/x
  3. Step 3: Cross multiply
    27,877.56x = 38,470.01 × 15,130.47
  4. Step 4: Simplify right side
    27,877.56x = 582,069,401.55
  5. Step 5: Solve for x
    x = 582,069,401.55/27,877.56
  6. Step 6: Final answer
    x = 20,879.49

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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.