Home / 30,678.01-42,337.43-17,249.29

Finding the Fourth Proportional to 30,678.01, 42,337.43 and 17,249.29

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Solution

The fourth proportional to 30,678.01, 42,337.43 and 17,249.29 is: 23,805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.01 : 42,337.43 = 17,249.29 : x
  2. Step 2: Convert to fraction form
    30,678.01/42,337.43 = 17,249.29/x
  3. Step 3: Cross multiply
    30,678.01x = 42,337.43 × 17,249.29
  4. Step 4: Simplify right side
    30,678.01x = 730,290,521.68
  5. Step 5: Solve for x
    x = 730,290,521.68/30,678.01
  6. Step 6: Final answer
    x = 23,805.02

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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.