Home / 28,194.66-42,287.40-10,660.32

Finding the Fourth Proportional to 28,194.66, 42,287.40 and 10,660.32

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Solution

The fourth proportional to 28,194.66, 42,287.40 and 10,660.32 is: 15,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.66 : 42,287.40 = 10,660.32 : x
  2. Step 2: Convert to fraction form
    28,194.66/42,287.40 = 10,660.32/x
  3. Step 3: Cross multiply
    28,194.66x = 42,287.40 × 10,660.32
  4. Step 4: Simplify right side
    28,194.66x = 450,797,215.97
  5. Step 5: Solve for x
    x = 450,797,215.97/28,194.66
  6. Step 6: Final answer
    x = 15,988.74

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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.