Home / 22,569.80-31,146.34-12,360.78

Finding the Fourth Proportional to 22,569.80, 31,146.34 and 12,360.78

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Solution

The fourth proportional to 22,569.80, 31,146.34 and 12,360.78 is: 17,057.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,569.80 : 31,146.34 = 12,360.78 : x
  2. Step 2: Convert to fraction form
    22,569.80/31,146.34 = 12,360.78/x
  3. Step 3: Cross multiply
    22,569.80x = 31,146.34 × 12,360.78
  4. Step 4: Simplify right side
    22,569.80x = 384,993,056.55
  5. Step 5: Solve for x
    x = 384,993,056.55/22,569.80
  6. Step 6: Final answer
    x = 17,057.89

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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.