Home / 21,483.38-32,211.84-7,440.14

Finding the Fourth Proportional to 21,483.38, 32,211.84 and 7,440.14

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Solution

The fourth proportional to 21,483.38, 32,211.84 and 7,440.14 is: 11,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.38 : 32,211.84 = 7,440.14 : x
  2. Step 2: Convert to fraction form
    21,483.38/32,211.84 = 7,440.14/x
  3. Step 3: Cross multiply
    21,483.38x = 32,211.84 × 7,440.14
  4. Step 4: Simplify right side
    21,483.38x = 239,660,599.26
  5. Step 5: Solve for x
    x = 239,660,599.26/21,483.38
  6. Step 6: Final answer
    x = 11,155.63

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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.