Home / 30,936.05-42,691.73-17,507.06

Finding the Fourth Proportional to 30,936.05, 42,691.73 and 17,507.06

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Solution

The fourth proportional to 30,936.05, 42,691.73 and 17,507.06 is: 24,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.05 : 42,691.73 = 17,507.06 : x
  2. Step 2: Convert to fraction form
    30,936.05/42,691.73 = 17,507.06/x
  3. Step 3: Cross multiply
    30,936.05x = 42,691.73 × 17,507.06
  4. Step 4: Simplify right side
    30,936.05x = 747,406,537.71
  5. Step 5: Solve for x
    x = 747,406,537.71/30,936.05
  6. Step 6: Final answer
    x = 24,159.73

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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.