Home / 21,571.95-32,359.33-6,781.44

Finding the Fourth Proportional to 21,571.95, 32,359.33 and 6,781.44

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Solution

The fourth proportional to 21,571.95, 32,359.33 and 6,781.44 is: 10,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.95 : 32,359.33 = 6,781.44 : x
  2. Step 2: Convert to fraction form
    21,571.95/32,359.33 = 6,781.44/x
  3. Step 3: Cross multiply
    21,571.95x = 32,359.33 × 6,781.44
  4. Step 4: Simplify right side
    21,571.95x = 219,442,946.51
  5. Step 5: Solve for x
    x = 219,442,946.51/21,571.95
  6. Step 6: Final answer
    x = 10,172.60

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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.