Home / 22,946.28-31,669.17-12,739.65

Finding the Fourth Proportional to 22,946.28, 31,669.17 and 12,739.65

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Solution

The fourth proportional to 22,946.28, 31,669.17 and 12,739.65 is: 17,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,946.28 : 31,669.17 = 12,739.65 : x
  2. Step 2: Convert to fraction form
    22,946.28/31,669.17 = 12,739.65/x
  3. Step 3: Cross multiply
    22,946.28x = 31,669.17 × 12,739.65
  4. Step 4: Simplify right side
    22,946.28x = 403,454,141.59
  5. Step 5: Solve for x
    x = 403,454,141.59/22,946.28
  6. Step 6: Final answer
    x = 17,582.55

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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.