Home / 22,775.20-31,427.46-12,702.69

Finding the Fourth Proportional to 22,775.20, 31,427.46 and 12,702.69

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Solution

The fourth proportional to 22,775.20, 31,427.46 and 12,702.69 is: 17,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.20 : 31,427.46 = 12,702.69 : x
  2. Step 2: Convert to fraction form
    22,775.20/31,427.46 = 12,702.69/x
  3. Step 3: Cross multiply
    22,775.20x = 31,427.46 × 12,702.69
  4. Step 4: Simplify right side
    22,775.20x = 399,213,281.87
  5. Step 5: Solve for x
    x = 399,213,281.87/22,775.20
  6. Step 6: Final answer
    x = 17,528.42

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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.