Home / 30,125.12-41,568.72-17,378.78

Finding the Fourth Proportional to 30,125.12, 41,568.72 and 17,378.78

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Solution

The fourth proportional to 30,125.12, 41,568.72 and 17,378.78 is: 23,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.12 : 41,568.72 = 17,378.78 : x
  2. Step 2: Convert to fraction form
    30,125.12/41,568.72 = 17,378.78/x
  3. Step 3: Cross multiply
    30,125.12x = 41,568.72 × 17,378.78
  4. Step 4: Simplify right side
    30,125.12x = 722,413,639.76
  5. Step 5: Solve for x
    x = 722,413,639.76/30,125.12
  6. Step 6: Final answer
    x = 23,980.44

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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.