Home / 22,490.75-31,037.73-12,419.17

Finding the Fourth Proportional to 22,490.75, 31,037.73 and 12,419.17

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Solution

The fourth proportional to 22,490.75, 31,037.73 and 12,419.17 is: 17,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.75 : 31,037.73 = 12,419.17 : x
  2. Step 2: Convert to fraction form
    22,490.75/31,037.73 = 12,419.17/x
  3. Step 3: Cross multiply
    22,490.75x = 31,037.73 × 12,419.17
  4. Step 4: Simplify right side
    22,490.75x = 385,462,845.28
  5. Step 5: Solve for x
    x = 385,462,845.28/22,490.75
  6. Step 6: Final answer
    x = 17,138.73

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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.