Home / 35,631.68-49,171.40-21,290.73

Finding the Fourth Proportional to 35,631.68, 49,171.40 and 21,290.73

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Solution

The fourth proportional to 35,631.68, 49,171.40 and 21,290.73 is: 29,381.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,631.68 : 49,171.40 = 21,290.73 : x
  2. Step 2: Convert to fraction form
    35,631.68/49,171.40 = 21,290.73/x
  3. Step 3: Cross multiply
    35,631.68x = 49,171.40 × 21,290.73
  4. Step 4: Simplify right side
    35,631.68x = 1,046,895,001.12
  5. Step 5: Solve for x
    x = 1,046,895,001.12/35,631.68
  6. Step 6: Final answer
    x = 29,381.02

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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.