Home / 38,912.85-58,319.69-18,926.86

Finding the Fourth Proportional to 38,912.85, 58,319.69 and 18,926.86

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Solution

The fourth proportional to 38,912.85, 58,319.69 and 18,926.86 is: 28,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,912.85 : 58,319.69 = 18,926.86 : x
  2. Step 2: Convert to fraction form
    38,912.85/58,319.69 = 18,926.86/x
  3. Step 3: Cross multiply
    38,912.85x = 58,319.69 × 18,926.86
  4. Step 4: Simplify right side
    38,912.85x = 1,103,808,607.87
  5. Step 5: Solve for x
    x = 1,103,808,607.87/38,912.85
  6. Step 6: Final answer
    x = 28,366.17

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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.