Home / 20,929.05-31,356.18-11,046.24

Finding the Fourth Proportional to 20,929.05, 31,356.18 and 11,046.24

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Solution

The fourth proportional to 20,929.05, 31,356.18 and 11,046.24 is: 16,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.05 : 31,356.18 = 11,046.24 : x
  2. Step 2: Convert to fraction form
    20,929.05/31,356.18 = 11,046.24/x
  3. Step 3: Cross multiply
    20,929.05x = 31,356.18 × 11,046.24
  4. Step 4: Simplify right side
    20,929.05x = 346,367,889.76
  5. Step 5: Solve for x
    x = 346,367,889.76/20,929.05
  6. Step 6: Final answer
    x = 16,549.62

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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.