Home / 30,544.79-42,152.95-17,115.55

Finding the Fourth Proportional to 30,544.79, 42,152.95 and 17,115.55

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Solution

The fourth proportional to 30,544.79, 42,152.95 and 17,115.55 is: 23,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544.79 : 42,152.95 = 17,115.55 : x
  2. Step 2: Convert to fraction form
    30,544.79/42,152.95 = 17,115.55/x
  3. Step 3: Cross multiply
    30,544.79x = 42,152.95 × 17,115.55
  4. Step 4: Simplify right side
    30,544.79x = 721,470,922.73
  5. Step 5: Solve for x
    x = 721,470,922.73/30,544.79
  6. Step 6: Final answer
    x = 23,620.10

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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.