Home / 31,342.47-43,228.17-19,412.43

Finding the Fourth Proportional to 31,342.47, 43,228.17 and 19,412.43

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Solution

The fourth proportional to 31,342.47, 43,228.17 and 19,412.43 is: 26,774.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,342.47 : 43,228.17 = 19,412.43 : x
  2. Step 2: Convert to fraction form
    31,342.47/43,228.17 = 19,412.43/x
  3. Step 3: Cross multiply
    31,342.47x = 43,228.17 × 19,412.43
  4. Step 4: Simplify right side
    31,342.47x = 839,163,824.15
  5. Step 5: Solve for x
    x = 839,163,824.15/31,342.47
  6. Step 6: Final answer
    x = 26,774.02

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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.