Home / 20,550.47-28,359.18-11,597.74

Finding the Fourth Proportional to 20,550.47, 28,359.18 and 11,597.74

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Solution

The fourth proportional to 20,550.47, 28,359.18 and 11,597.74 is: 16,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.47 : 28,359.18 = 11,597.74 : x
  2. Step 2: Convert to fraction form
    20,550.47/28,359.18 = 11,597.74/x
  3. Step 3: Cross multiply
    20,550.47x = 28,359.18 × 11,597.74
  4. Step 4: Simplify right side
    20,550.47x = 328,902,325.36
  5. Step 5: Solve for x
    x = 328,902,325.36/20,550.47
  6. Step 6: Final answer
    x = 16,004.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.