Home / 14,382.32-21,570.23-5,612.72

Finding the Fourth Proportional to 14,382.32, 21,570.23 and 5,612.72

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Solution

The fourth proportional to 14,382.32, 21,570.23 and 5,612.72 is: 8,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.32 : 21,570.23 = 5,612.72 : x
  2. Step 2: Convert to fraction form
    14,382.32/21,570.23 = 5,612.72/x
  3. Step 3: Cross multiply
    14,382.32x = 21,570.23 × 5,612.72
  4. Step 4: Simplify right side
    14,382.32x = 121,067,525.41
  5. Step 5: Solve for x
    x = 121,067,525.41/14,382.32
  6. Step 6: Final answer
    x = 8,417.81

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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.