Home / 21,159.48-31,735.20-10,626.66

Finding the Fourth Proportional to 21,159.48, 31,735.20 and 10,626.66

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Solution

The fourth proportional to 21,159.48, 31,735.20 and 10,626.66 is: 15,937.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.48 : 31,735.20 = 10,626.66 : x
  2. Step 2: Convert to fraction form
    21,159.48/31,735.20 = 10,626.66/x
  3. Step 3: Cross multiply
    21,159.48x = 31,735.20 × 10,626.66
  4. Step 4: Simplify right side
    21,159.48x = 337,239,180.43
  5. Step 5: Solve for x
    x = 337,239,180.43/21,159.48
  6. Step 6: Final answer
    x = 15,937.97

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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.