Home / 21,182.04-31,752.39-10,085.75

Finding the Fourth Proportional to 21,182.04, 31,752.39 and 10,085.75

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Solution

The fourth proportional to 21,182.04, 31,752.39 and 10,085.75 is: 15,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.04 : 31,752.39 = 10,085.75 : x
  2. Step 2: Convert to fraction form
    21,182.04/31,752.39 = 10,085.75/x
  3. Step 3: Cross multiply
    21,182.04x = 31,752.39 × 10,085.75
  4. Step 4: Simplify right side
    21,182.04x = 320,246,665.57
  5. Step 5: Solve for x
    x = 320,246,665.57/21,182.04
  6. Step 6: Final answer
    x = 15,118.78

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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.