Home / 17,729.28-26,728.38-16,776.72

Finding the Fourth Proportional to 17,729.28, 26,728.38 and 16,776.72

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Solution

The fourth proportional to 17,729.28, 26,728.38 and 16,776.72 is: 25,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,729.28 : 26,728.38 = 16,776.72 : x
  2. Step 2: Convert to fraction form
    17,729.28/26,728.38 = 16,776.72/x
  3. Step 3: Cross multiply
    17,729.28x = 26,728.38 × 16,776.72
  4. Step 4: Simplify right side
    17,729.28x = 448,414,547.31
  5. Step 5: Solve for x
    x = 448,414,547.31/17,729.28
  6. Step 6: Final answer
    x = 25,292.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.