Home / 31,412.64-43,351.92-17,988.12

Finding the Fourth Proportional to 31,412.64, 43,351.92 and 17,988.12

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Solution

The fourth proportional to 31,412.64, 43,351.92 and 17,988.12 is: 24,825.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412.64 : 43,351.92 = 17,988.12 : x
  2. Step 2: Convert to fraction form
    31,412.64/43,351.92 = 17,988.12/x
  3. Step 3: Cross multiply
    31,412.64x = 43,351.92 × 17,988.12
  4. Step 4: Simplify right side
    31,412.64x = 779,819,539.19
  5. Step 5: Solve for x
    x = 779,819,539.19/31,412.64
  6. Step 6: Final answer
    x = 24,825.02

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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.