Home / 30,490.44-42,078.40-17,060.88

Finding the Fourth Proportional to 30,490.44, 42,078.40 and 17,060.88

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Solution

The fourth proportional to 30,490.44, 42,078.40 and 17,060.88 is: 23,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.44 : 42,078.40 = 17,060.88 : x
  2. Step 2: Convert to fraction form
    30,490.44/42,078.40 = 17,060.88/x
  3. Step 3: Cross multiply
    30,490.44x = 42,078.40 × 17,060.88
  4. Step 4: Simplify right side
    30,490.44x = 717,894,532.99
  5. Step 5: Solve for x
    x = 717,894,532.99/30,490.44
  6. Step 6: Final answer
    x = 23,544.91

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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.