Home / 30,678.46-42,335.18-17,250.48

Finding the Fourth Proportional to 30,678.46, 42,335.18 and 17,250.48

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Solution

The fourth proportional to 30,678.46, 42,335.18 and 17,250.48 is: 23,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.46 : 42,335.18 = 17,250.48 : x
  2. Step 2: Convert to fraction form
    30,678.46/42,335.18 = 17,250.48/x
  3. Step 3: Cross multiply
    30,678.46x = 42,335.18 × 17,250.48
  4. Step 4: Simplify right side
    30,678.46x = 730,302,175.89
  5. Step 5: Solve for x
    x = 730,302,175.89/30,678.46
  6. Step 6: Final answer
    x = 23,805.05

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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.