Home / 34,689.67-47,872.10-18,774.46

Finding the Fourth Proportional to 34,689.67, 47,872.10 and 18,774.46

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Solution

The fourth proportional to 34,689.67, 47,872.10 and 18,774.46 is: 25,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.67 : 47,872.10 = 18,774.46 : x
  2. Step 2: Convert to fraction form
    34,689.67/47,872.10 = 18,774.46/x
  3. Step 3: Cross multiply
    34,689.67x = 47,872.10 × 18,774.46
  4. Step 4: Simplify right side
    34,689.67x = 898,772,826.57
  5. Step 5: Solve for x
    x = 898,772,826.57/34,689.67
  6. Step 6: Final answer
    x = 25,908.95

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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.