Home / 31,540.39-47,314.94-11,547.26

Finding the Fourth Proportional to 31,540.39, 47,314.94 and 11,547.26

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Solution

The fourth proportional to 31,540.39, 47,314.94 and 11,547.26 is: 17,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.39 : 47,314.94 = 11,547.26 : x
  2. Step 2: Convert to fraction form
    31,540.39/47,314.94 = 11,547.26/x
  3. Step 3: Cross multiply
    31,540.39x = 47,314.94 × 11,547.26
  4. Step 4: Simplify right side
    31,540.39x = 546,357,797.18
  5. Step 5: Solve for x
    x = 546,357,797.18/31,540.39
  6. Step 6: Final answer
    x = 17,322.48

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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.