Home / 16,557.20-24,835.80-7,201.70

Finding the Fourth Proportional to 16,557.20, 24,835.80 and 7,201.70

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Solution

The fourth proportional to 16,557.20, 24,835.80 and 7,201.70 is: 10,802.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,557.20 : 24,835.80 = 7,201.70 : x
  2. Step 2: Convert to fraction form
    16,557.20/24,835.80 = 7,201.70/x
  3. Step 3: Cross multiply
    16,557.20x = 24,835.80 × 7,201.70
  4. Step 4: Simplify right side
    16,557.20x = 178,859,980.86
  5. Step 5: Solve for x
    x = 178,859,980.86/16,557.20
  6. Step 6: Final answer
    x = 10,802.55

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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.