Home / 30,678.76-42,338.46-17,250.04

Finding the Fourth Proportional to 30,678.76, 42,338.46 and 17,250.04

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Solution

The fourth proportional to 30,678.76, 42,338.46 and 17,250.04 is: 23,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.76 : 42,338.46 = 17,250.04 : x
  2. Step 2: Convert to fraction form
    30,678.76/42,338.46 = 17,250.04/x
  3. Step 3: Cross multiply
    30,678.76x = 42,338.46 × 17,250.04
  4. Step 4: Simplify right side
    30,678.76x = 730,340,128.54
  5. Step 5: Solve for x
    x = 730,340,128.54/30,678.76
  6. Step 6: Final answer
    x = 23,806.05

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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.