Home / 21,729.78-32,594.33-6,938.60

Finding the Fourth Proportional to 21,729.78, 32,594.33 and 6,938.60

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Solution

The fourth proportional to 21,729.78, 32,594.33 and 6,938.60 is: 10,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.78 : 32,594.33 = 6,938.60 : x
  2. Step 2: Convert to fraction form
    21,729.78/32,594.33 = 6,938.60/x
  3. Step 3: Cross multiply
    21,729.78x = 32,594.33 × 6,938.60
  4. Step 4: Simplify right side
    21,729.78x = 226,158,820.47
  5. Step 5: Solve for x
    x = 226,158,820.47/21,729.78
  6. Step 6: Final answer
    x = 10,407.78

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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.