Home / 20,857.16-31,285.79-5,062.13

Finding the Fourth Proportional to 20,857.16, 31,285.79 and 5,062.13

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Solution

The fourth proportional to 20,857.16, 31,285.79 and 5,062.13 is: 7,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857.16 : 31,285.79 = 5,062.13 : x
  2. Step 2: Convert to fraction form
    20,857.16/31,285.79 = 5,062.13/x
  3. Step 3: Cross multiply
    20,857.16x = 31,285.79 × 5,062.13
  4. Step 4: Simplify right side
    20,857.16x = 158,372,690.70
  5. Step 5: Solve for x
    x = 158,372,690.70/20,857.16
  6. Step 6: Final answer
    x = 7,593.20

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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.