Home / 21,511.90-32,280.54-9,034.12

Finding the Fourth Proportional to 21,511.90, 32,280.54 and 9,034.12

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Solution

The fourth proportional to 21,511.90, 32,280.54 and 9,034.12 is: 13,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.90 : 32,280.54 = 9,034.12 : x
  2. Step 2: Convert to fraction form
    21,511.90/32,280.54 = 9,034.12/x
  3. Step 3: Cross multiply
    21,511.90x = 32,280.54 × 9,034.12
  4. Step 4: Simplify right side
    21,511.90x = 291,626,272.02
  5. Step 5: Solve for x
    x = 291,626,272.02/21,511.90
  6. Step 6: Final answer
    x = 13,556.51

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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.