Home / 21,080.04-31,618.92-10,691.52

Finding the Fourth Proportional to 21,080.04, 31,618.92 and 10,691.52

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Solution

The fourth proportional to 21,080.04, 31,618.92 and 10,691.52 is: 16,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.04 : 31,618.92 = 10,691.52 : x
  2. Step 2: Convert to fraction form
    21,080.04/31,618.92 = 10,691.52/x
  3. Step 3: Cross multiply
    21,080.04x = 31,618.92 × 10,691.52
  4. Step 4: Simplify right side
    21,080.04x = 338,054,315.56
  5. Step 5: Solve for x
    x = 338,054,315.56/21,080.04
  6. Step 6: Final answer
    x = 16,036.70

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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.