Home / 30,498.24-42,087.78-17,070.74

Finding the Fourth Proportional to 30,498.24, 42,087.78 and 17,070.74

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Solution

The fourth proportional to 30,498.24, 42,087.78 and 17,070.74 is: 23,557.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,498.24 : 42,087.78 = 17,070.74 : x
  2. Step 2: Convert to fraction form
    30,498.24/42,087.78 = 17,070.74/x
  3. Step 3: Cross multiply
    30,498.24x = 42,087.78 × 17,070.74
  4. Step 4: Simplify right side
    30,498.24x = 718,469,339.12
  5. Step 5: Solve for x
    x = 718,469,339.12/30,498.24
  6. Step 6: Final answer
    x = 23,557.73

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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.