Home / 39,276.90-58,920.21-12,624.66

Finding the Fourth Proportional to 39,276.90, 58,920.21 and 12,624.66

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Solution

The fourth proportional to 39,276.90, 58,920.21 and 12,624.66 is: 18,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,276.90 : 58,920.21 = 12,624.66 : x
  2. Step 2: Convert to fraction form
    39,276.90/58,920.21 = 12,624.66/x
  3. Step 3: Cross multiply
    39,276.90x = 58,920.21 × 12,624.66
  4. Step 4: Simplify right side
    39,276.90x = 743,847,618.38
  5. Step 5: Solve for x
    x = 743,847,618.38/39,276.90
  6. Step 6: Final answer
    x = 18,938.55

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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.