Home / 31,414.51-43,354.11-17,987.59

Finding the Fourth Proportional to 31,414.51, 43,354.11 and 17,987.59

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Solution

The fourth proportional to 31,414.51, 43,354.11 and 17,987.59 is: 24,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.51 : 43,354.11 = 17,987.59 : x
  2. Step 2: Convert to fraction form
    31,414.51/43,354.11 = 17,987.59/x
  3. Step 3: Cross multiply
    31,414.51x = 43,354.11 × 17,987.59
  4. Step 4: Simplify right side
    31,414.51x = 779,835,955.49
  5. Step 5: Solve for x
    x = 779,835,955.49/31,414.51
  6. Step 6: Final answer
    x = 24,824.07

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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.