Home / 19,040.47-28,577.10-10,728.65

Finding the Fourth Proportional to 19,040.47, 28,577.10 and 10,728.65

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Solution

The fourth proportional to 19,040.47, 28,577.10 and 10,728.65 is: 16,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.47 : 28,577.10 = 10,728.65 : x
  2. Step 2: Convert to fraction form
    19,040.47/28,577.10 = 10,728.65/x
  3. Step 3: Cross multiply
    19,040.47x = 28,577.10 × 10,728.65
  4. Step 4: Simplify right side
    19,040.47x = 306,593,815.59
  5. Step 5: Solve for x
    x = 306,593,815.59/19,040.47
  6. Step 6: Final answer
    x = 16,102.22

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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.