Home / 22,557.52-31,126.11-12,485.93

Finding the Fourth Proportional to 22,557.52, 31,126.11 and 12,485.93

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Solution

The fourth proportional to 22,557.52, 31,126.11 and 12,485.93 is: 17,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.52 : 31,126.11 = 12,485.93 : x
  2. Step 2: Convert to fraction form
    22,557.52/31,126.11 = 12,485.93/x
  3. Step 3: Cross multiply
    22,557.52x = 31,126.11 × 12,485.93
  4. Step 4: Simplify right side
    22,557.52x = 388,638,508.45
  5. Step 5: Solve for x
    x = 388,638,508.45/22,557.52
  6. Step 6: Final answer
    x = 17,228.78

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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.