Home / 31,240.08-43,112.45-17,809.18

Finding the Fourth Proportional to 31,240.08, 43,112.45 and 17,809.18

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Solution

The fourth proportional to 31,240.08, 43,112.45 and 17,809.18 is: 24,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,240.08 : 43,112.45 = 17,809.18 : x
  2. Step 2: Convert to fraction form
    31,240.08/43,112.45 = 17,809.18/x
  3. Step 3: Cross multiply
    31,240.08x = 43,112.45 × 17,809.18
  4. Step 4: Simplify right side
    31,240.08x = 767,797,382.29
  5. Step 5: Solve for x
    x = 767,797,382.29/31,240.08
  6. Step 6: Final answer
    x = 24,577.32

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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.