Home / 31,439.84-43,387.08-17,293.58

Finding the Fourth Proportional to 31,439.84, 43,387.08 and 17,293.58

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Solution

The fourth proportional to 31,439.84, 43,387.08 and 17,293.58 is: 23,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.84 : 43,387.08 = 17,293.58 : x
  2. Step 2: Convert to fraction form
    31,439.84/43,387.08 = 17,293.58/x
  3. Step 3: Cross multiply
    31,439.84x = 43,387.08 × 17,293.58
  4. Step 4: Simplify right side
    31,439.84x = 750,317,938.95
  5. Step 5: Solve for x
    x = 750,317,938.95/31,439.84
  6. Step 6: Final answer
    x = 23,865.20

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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.