Home / 21,569.90-32,356.46-6,778.76

Finding the Fourth Proportional to 21,569.90, 32,356.46 and 6,778.76

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Solution

The fourth proportional to 21,569.90, 32,356.46 and 6,778.76 is: 10,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.90 : 32,356.46 = 6,778.76 : x
  2. Step 2: Convert to fraction form
    21,569.90/32,356.46 = 6,778.76/x
  3. Step 3: Cross multiply
    21,569.90x = 32,356.46 × 6,778.76
  4. Step 4: Simplify right side
    21,569.90x = 219,336,531.95
  5. Step 5: Solve for x
    x = 219,336,531.95/21,569.90
  6. Step 6: Final answer
    x = 10,168.64

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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.