Home / 21,342.76-32,015.85-5,760.16

Finding the Fourth Proportional to 21,342.76, 32,015.85 and 5,760.16

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Solution

The fourth proportional to 21,342.76, 32,015.85 and 5,760.16 is: 8,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.76 : 32,015.85 = 5,760.16 : x
  2. Step 2: Convert to fraction form
    21,342.76/32,015.85 = 5,760.16/x
  3. Step 3: Cross multiply
    21,342.76x = 32,015.85 × 5,760.16
  4. Step 4: Simplify right side
    21,342.76x = 184,416,418.54
  5. Step 5: Solve for x
    x = 184,416,418.54/21,342.76
  6. Step 6: Final answer
    x = 8,640.70

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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.