Home / 31,377.66-47,077.29-19,677.18

Finding the Fourth Proportional to 31,377.66, 47,077.29 and 19,677.18

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Solution

The fourth proportional to 31,377.66, 47,077.29 and 19,677.18 is: 29,522.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.66 : 47,077.29 = 19,677.18 : x
  2. Step 2: Convert to fraction form
    31,377.66/47,077.29 = 19,677.18/x
  3. Step 3: Cross multiply
    31,377.66x = 47,077.29 × 19,677.18
  4. Step 4: Simplify right side
    31,377.66x = 926,348,309.24
  5. Step 5: Solve for x
    x = 926,348,309.24/31,377.66
  6. Step 6: Final answer
    x = 29,522.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.