Home / 22,561.87-31,135.44-12,490.60

Finding the Fourth Proportional to 22,561.87, 31,135.44 and 12,490.60

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Solution

The fourth proportional to 22,561.87, 31,135.44 and 12,490.60 is: 17,237.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.87 : 31,135.44 = 12,490.60 : x
  2. Step 2: Convert to fraction form
    22,561.87/31,135.44 = 12,490.60/x
  3. Step 3: Cross multiply
    22,561.87x = 31,135.44 × 12,490.60
  4. Step 4: Simplify right side
    22,561.87x = 388,900,326.86
  5. Step 5: Solve for x
    x = 388,900,326.86/22,561.87
  6. Step 6: Final answer
    x = 17,237.06

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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.