Home / 20,263.92-30,315.96-15,347.76

Finding the Fourth Proportional to 20,263.92, 30,315.96 and 15,347.76

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Solution

The fourth proportional to 20,263.92, 30,315.96 and 15,347.76 is: 22,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.92 : 30,315.96 = 15,347.76 : x
  2. Step 2: Convert to fraction form
    20,263.92/30,315.96 = 15,347.76/x
  3. Step 3: Cross multiply
    20,263.92x = 30,315.96 × 15,347.76
  4. Step 4: Simplify right side
    20,263.92x = 465,282,078.25
  5. Step 5: Solve for x
    x = 465,282,078.25/20,263.92
  6. Step 6: Final answer
    x = 22,961.11

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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.