Home / 21,440.12-32,155.05-7,400.60

Finding the Fourth Proportional to 21,440.12, 32,155.05 and 7,400.60

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Solution

The fourth proportional to 21,440.12, 32,155.05 and 7,400.60 is: 11,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.12 : 32,155.05 = 7,400.60 : x
  2. Step 2: Convert to fraction form
    21,440.12/32,155.05 = 7,400.60/x
  3. Step 3: Cross multiply
    21,440.12x = 32,155.05 × 7,400.60
  4. Step 4: Simplify right side
    21,440.12x = 237,966,765.43
  5. Step 5: Solve for x
    x = 237,966,765.43/21,440.12
  6. Step 6: Final answer
    x = 11,099.14

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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.