Home / 21,753.08-32,618.28-10,643.12

Finding the Fourth Proportional to 21,753.08, 32,618.28 and 10,643.12

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Solution

The fourth proportional to 21,753.08, 32,618.28 and 10,643.12 is: 15,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.08 : 32,618.28 = 10,643.12 : x
  2. Step 2: Convert to fraction form
    21,753.08/32,618.28 = 10,643.12/x
  3. Step 3: Cross multiply
    21,753.08x = 32,618.28 × 10,643.12
  4. Step 4: Simplify right side
    21,753.08x = 347,160,268.23
  5. Step 5: Solve for x
    x = 347,160,268.23/21,753.08
  6. Step 6: Final answer
    x = 15,959.13

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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.