Home / 20,246.40-27,940.56-12,287.52

Finding the Fourth Proportional to 20,246.40, 27,940.56 and 12,287.52

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Solution

The fourth proportional to 20,246.40, 27,940.56 and 12,287.52 is: 16,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.40 : 27,940.56 = 12,287.52 : x
  2. Step 2: Convert to fraction form
    20,246.40/27,940.56 = 12,287.52/x
  3. Step 3: Cross multiply
    20,246.40x = 27,940.56 × 12,287.52
  4. Step 4: Simplify right side
    20,246.40x = 343,320,189.81
  5. Step 5: Solve for x
    x = 343,320,189.81/20,246.40
  6. Step 6: Final answer
    x = 16,957.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.