Home / 31,530.16-43,511.74-17,382.72

Finding the Fourth Proportional to 31,530.16, 43,511.74 and 17,382.72

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Solution

The fourth proportional to 31,530.16, 43,511.74 and 17,382.72 is: 23,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.16 : 43,511.74 = 17,382.72 : x
  2. Step 2: Convert to fraction form
    31,530.16/43,511.74 = 17,382.72/x
  3. Step 3: Cross multiply
    31,530.16x = 43,511.74 × 17,382.72
  4. Step 4: Simplify right side
    31,530.16x = 756,352,393.13
  5. Step 5: Solve for x
    x = 756,352,393.13/31,530.16
  6. Step 6: Final answer
    x = 23,988.22

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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.