Home / 20,702.79-31,044.83-5,908.19

Finding the Fourth Proportional to 20,702.79, 31,044.83 and 5,908.19

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Solution

The fourth proportional to 20,702.79, 31,044.83 and 5,908.19 is: 8,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.79 : 31,044.83 = 5,908.19 : x
  2. Step 2: Convert to fraction form
    20,702.79/31,044.83 = 5,908.19/x
  3. Step 3: Cross multiply
    20,702.79x = 31,044.83 × 5,908.19
  4. Step 4: Simplify right side
    20,702.79x = 183,418,569.39
  5. Step 5: Solve for x
    x = 183,418,569.39/20,702.79
  6. Step 6: Final answer
    x = 8,859.61

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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.