Home / 22,780.70-31,435.82-13,090.46

Finding the Fourth Proportional to 22,780.70, 31,435.82 and 13,090.46

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Solution

The fourth proportional to 22,780.70, 31,435.82 and 13,090.46 is: 18,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,780.70 : 31,435.82 = 13,090.46 : x
  2. Step 2: Convert to fraction form
    22,780.70/31,435.82 = 13,090.46/x
  3. Step 3: Cross multiply
    22,780.70x = 31,435.82 × 13,090.46
  4. Step 4: Simplify right side
    22,780.70x = 411,509,344.28
  5. Step 5: Solve for x
    x = 411,509,344.28/22,780.70
  6. Step 6: Final answer
    x = 18,063.95

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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.