Home / 20,832.02-31,248.23-5,249.64

Finding the Fourth Proportional to 20,832.02, 31,248.23 and 5,249.64

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Solution

The fourth proportional to 20,832.02, 31,248.23 and 5,249.64 is: 7,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.02 : 31,248.23 = 5,249.64 : x
  2. Step 2: Convert to fraction form
    20,832.02/31,248.23 = 5,249.64/x
  3. Step 3: Cross multiply
    20,832.02x = 31,248.23 × 5,249.64
  4. Step 4: Simplify right side
    20,832.02x = 164,041,931.89
  5. Step 5: Solve for x
    x = 164,041,931.89/20,832.02
  6. Step 6: Final answer
    x = 7,874.51

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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.