Home / 20,710.04-31,042.72-10,167.80

Finding the Fourth Proportional to 20,710.04, 31,042.72 and 10,167.80

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Solution

The fourth proportional to 20,710.04, 31,042.72 and 10,167.80 is: 15,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.04 : 31,042.72 = 10,167.80 : x
  2. Step 2: Convert to fraction form
    20,710.04/31,042.72 = 10,167.80/x
  3. Step 3: Cross multiply
    20,710.04x = 31,042.72 × 10,167.80
  4. Step 4: Simplify right side
    20,710.04x = 315,636,117.58
  5. Step 5: Solve for x
    x = 315,636,117.58/20,710.04
  6. Step 6: Final answer
    x = 15,240.73

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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.