Home / 30,441.87-42,009.67-17,013.12

Finding the Fourth Proportional to 30,441.87, 42,009.67 and 17,013.12

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Solution

The fourth proportional to 30,441.87, 42,009.67 and 17,013.12 is: 23,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,441.87 : 42,009.67 = 17,013.12 : x
  2. Step 2: Convert to fraction form
    30,441.87/42,009.67 = 17,013.12/x
  3. Step 3: Cross multiply
    30,441.87x = 42,009.67 × 17,013.12
  4. Step 4: Simplify right side
    30,441.87x = 714,715,556.87
  5. Step 5: Solve for x
    x = 714,715,556.87/30,441.87
  6. Step 6: Final answer
    x = 23,478.04

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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.