Home / 31,120.34-42,949.70-17,693.60

Finding the Fourth Proportional to 31,120.34, 42,949.70 and 17,693.60

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Solution

The fourth proportional to 31,120.34, 42,949.70 and 17,693.60 is: 24,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.34 : 42,949.70 = 17,693.60 : x
  2. Step 2: Convert to fraction form
    31,120.34/42,949.70 = 17,693.60/x
  3. Step 3: Cross multiply
    31,120.34x = 42,949.70 × 17,693.60
  4. Step 4: Simplify right side
    31,120.34x = 759,934,508.70
  5. Step 5: Solve for x
    x = 759,934,508.70/31,120.34
  6. Step 6: Final answer
    x = 24,419.23

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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.