Home / 31,826.04-43,915.04-18,394.70

Finding the Fourth Proportional to 31,826.04, 43,915.04 and 18,394.70

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Solution

The fourth proportional to 31,826.04, 43,915.04 and 18,394.70 is: 25,381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,826.04 : 43,915.04 = 18,394.70 : x
  2. Step 2: Convert to fraction form
    31,826.04/43,915.04 = 18,394.70/x
  3. Step 3: Cross multiply
    31,826.04x = 43,915.04 × 18,394.70
  4. Step 4: Simplify right side
    31,826.04x = 807,803,743.72
  5. Step 5: Solve for x
    x = 807,803,743.72/31,826.04
  6. Step 6: Final answer
    x = 25,381.85

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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.