Home / 21,563.16-32,288.40-20,249.32

Finding the Fourth Proportional to 21,563.16, 32,288.40 and 20,249.32

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Solution

The fourth proportional to 21,563.16, 32,288.40 and 20,249.32 is: 30,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.16 : 32,288.40 = 20,249.32 : x
  2. Step 2: Convert to fraction form
    21,563.16/32,288.40 = 20,249.32/x
  3. Step 3: Cross multiply
    21,563.16x = 32,288.40 × 20,249.32
  4. Step 4: Simplify right side
    21,563.16x = 653,818,143.89
  5. Step 5: Solve for x
    x = 653,818,143.89/21,563.16
  6. Step 6: Final answer
    x = 30,321.07

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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.