Home / 31,384.20-43,310.28-17,237.40

Finding the Fourth Proportional to 31,384.20, 43,310.28 and 17,237.40

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Solution

The fourth proportional to 31,384.20, 43,310.28 and 17,237.40 is: 23,787.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,384.20 : 43,310.28 = 17,237.40 : x
  2. Step 2: Convert to fraction form
    31,384.20/43,310.28 = 17,237.40/x
  3. Step 3: Cross multiply
    31,384.20x = 43,310.28 × 17,237.40
  4. Step 4: Simplify right side
    31,384.20x = 746,556,620.47
  5. Step 5: Solve for x
    x = 746,556,620.47/31,384.20
  6. Step 6: Final answer
    x = 23,787.66

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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.