Home / 22,557.88-31,129.24-12,485.96

Finding the Fourth Proportional to 22,557.88, 31,129.24 and 12,485.96

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Solution

The fourth proportional to 22,557.88, 31,129.24 and 12,485.96 is: 17,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.88 : 31,129.24 = 12,485.96 : x
  2. Step 2: Convert to fraction form
    22,557.88/31,129.24 = 12,485.96/x
  3. Step 3: Cross multiply
    22,557.88x = 31,129.24 × 12,485.96
  4. Step 4: Simplify right side
    22,557.88x = 388,678,445.47
  5. Step 5: Solve for x
    x = 388,678,445.47/22,557.88
  6. Step 6: Final answer
    x = 17,230.27

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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.