Home / 38,466.90-57,699.95-12,171.87

Finding the Fourth Proportional to 38,466.90, 57,699.95 and 12,171.87

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Solution

The fourth proportional to 38,466.90, 57,699.95 and 12,171.87 is: 18,257.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,466.90 : 57,699.95 = 12,171.87 : x
  2. Step 2: Convert to fraction form
    38,466.90/57,699.95 = 12,171.87/x
  3. Step 3: Cross multiply
    38,466.90x = 57,699.95 × 12,171.87
  4. Step 4: Simplify right side
    38,466.90x = 702,316,229.55
  5. Step 5: Solve for x
    x = 702,316,229.55/38,466.90
  6. Step 6: Final answer
    x = 18,257.68

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1.5x scale

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.