Home / 18,151.44-25,027.56-15,490.32

Finding the Fourth Proportional to 18,151.44, 25,027.56 and 15,490.32

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Solution

The fourth proportional to 18,151.44, 25,027.56 and 15,490.32 is: 21,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.44 : 25,027.56 = 15,490.32 : x
  2. Step 2: Convert to fraction form
    18,151.44/25,027.56 = 15,490.32/x
  3. Step 3: Cross multiply
    18,151.44x = 25,027.56 × 15,490.32
  4. Step 4: Simplify right side
    18,151.44x = 387,684,913.22
  5. Step 5: Solve for x
    x = 387,684,913.22/18,151.44
  6. Step 6: Final answer
    x = 21,358.36

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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.