Home / 28,040.54-38,691.12-16,708.64

Finding the Fourth Proportional to 28,040.54, 38,691.12 and 16,708.64

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Solution

The fourth proportional to 28,040.54, 38,691.12 and 16,708.64 is: 23,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.54 : 38,691.12 = 16,708.64 : x
  2. Step 2: Convert to fraction form
    28,040.54/38,691.12 = 16,708.64/x
  3. Step 3: Cross multiply
    28,040.54x = 38,691.12 × 16,708.64
  4. Step 4: Simplify right side
    28,040.54x = 646,475,995.28
  5. Step 5: Solve for x
    x = 646,475,995.28/28,040.54
  6. Step 6: Final answer
    x = 23,055.05

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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.