Home / 20,657.87-30,969.55-9,572.52

Finding the Fourth Proportional to 20,657.87, 30,969.55 and 9,572.52

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Solution

The fourth proportional to 20,657.87, 30,969.55 and 9,572.52 is: 14,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.87 : 30,969.55 = 9,572.52 : x
  2. Step 2: Convert to fraction form
    20,657.87/30,969.55 = 9,572.52/x
  3. Step 3: Cross multiply
    20,657.87x = 30,969.55 × 9,572.52
  4. Step 4: Simplify right side
    20,657.87x = 296,456,636.77
  5. Step 5: Solve for x
    x = 296,456,636.77/20,657.87
  6. Step 6: Final answer
    x = 14,350.78

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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.