Home / 39,293.28-58,951.40-12,638.67

Finding the Fourth Proportional to 39,293.28, 58,951.40 and 12,638.67

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Solution

The fourth proportional to 39,293.28, 58,951.40 and 12,638.67 is: 18,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.28 : 58,951.40 = 12,638.67 : x
  2. Step 2: Convert to fraction form
    39,293.28/58,951.40 = 12,638.67/x
  3. Step 3: Cross multiply
    39,293.28x = 58,951.40 × 12,638.67
  4. Step 4: Simplify right side
    39,293.28x = 745,067,227.44
  5. Step 5: Solve for x
    x = 745,067,227.44/39,293.28
  6. Step 6: Final answer
    x = 18,961.70

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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.