Home / 25,652.96-35,380.16-21,549.12

Finding the Fourth Proportional to 25,652.96, 35,380.16 and 21,549.12

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Solution

The fourth proportional to 25,652.96, 35,380.16 and 21,549.12 is: 29,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,652.96 : 35,380.16 = 21,549.12 : x
  2. Step 2: Convert to fraction form
    25,652.96/35,380.16 = 21,549.12/x
  3. Step 3: Cross multiply
    25,652.96x = 35,380.16 × 21,549.12
  4. Step 4: Simplify right side
    25,652.96x = 762,411,313.46
  5. Step 5: Solve for x
    x = 762,411,313.46/25,652.96
  6. Step 6: Final answer
    x = 29,720.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.