Home / 20,259.54-30,392.54-8,572.86

Finding the Fourth Proportional to 20,259.54, 30,392.54 and 8,572.86

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Solution

The fourth proportional to 20,259.54, 30,392.54 and 8,572.86 is: 12,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.54 : 30,392.54 = 8,572.86 : x
  2. Step 2: Convert to fraction form
    20,259.54/30,392.54 = 8,572.86/x
  3. Step 3: Cross multiply
    20,259.54x = 30,392.54 × 8,572.86
  4. Step 4: Simplify right side
    20,259.54x = 260,550,990.46
  5. Step 5: Solve for x
    x = 260,550,990.46/20,259.54
  6. Step 6: Final answer
    x = 12,860.66

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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.