Home / 20,569.68-30,835.08-7,418.52

Finding the Fourth Proportional to 20,569.68, 30,835.08 and 7,418.52

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Solution

The fourth proportional to 20,569.68, 30,835.08 and 7,418.52 is: 11,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569.68 : 30,835.08 = 7,418.52 : x
  2. Step 2: Convert to fraction form
    20,569.68/30,835.08 = 7,418.52/x
  3. Step 3: Cross multiply
    20,569.68x = 30,835.08 × 7,418.52
  4. Step 4: Simplify right side
    20,569.68x = 228,750,657.68
  5. Step 5: Solve for x
    x = 228,750,657.68/20,569.68
  6. Step 6: Final answer
    x = 11,120.77

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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.