Home / 28,536.16-39,373.44-17,921.92

Finding the Fourth Proportional to 28,536.16, 39,373.44 and 17,921.92

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Solution

The fourth proportional to 28,536.16, 39,373.44 and 17,921.92 is: 24,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.16 : 39,373.44 = 17,921.92 : x
  2. Step 2: Convert to fraction form
    28,536.16/39,373.44 = 17,921.92/x
  3. Step 3: Cross multiply
    28,536.16x = 39,373.44 × 17,921.92
  4. Step 4: Simplify right side
    28,536.16x = 705,647,641.80
  5. Step 5: Solve for x
    x = 705,647,641.80/28,536.16
  6. Step 6: Final answer
    x = 24,728.19

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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.