Home / 38,938.61-58,409.85-18,966.44

Finding the Fourth Proportional to 38,938.61, 58,409.85 and 18,966.44

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Solution

The fourth proportional to 38,938.61, 58,409.85 and 18,966.44 is: 28,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.61 : 58,409.85 = 18,966.44 : x
  2. Step 2: Convert to fraction form
    38,938.61/58,409.85 = 18,966.44/x
  3. Step 3: Cross multiply
    38,938.61x = 58,409.85 × 18,966.44
  4. Step 4: Simplify right side
    38,938.61x = 1,107,826,915.43
  5. Step 5: Solve for x
    x = 1,107,826,915.43/38,938.61
  6. Step 6: Final answer
    x = 28,450.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.