Home / 30,508.76-42,104.70-17,079.80

Finding the Fourth Proportional to 30,508.76, 42,104.70 and 17,079.80

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Solution

The fourth proportional to 30,508.76, 42,104.70 and 17,079.80 is: 23,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.76 : 42,104.70 = 17,079.80 : x
  2. Step 2: Convert to fraction form
    30,508.76/42,104.70 = 17,079.80/x
  3. Step 3: Cross multiply
    30,508.76x = 42,104.70 × 17,079.80
  4. Step 4: Simplify right side
    30,508.76x = 719,139,855.06
  5. Step 5: Solve for x
    x = 719,139,855.06/30,508.76
  6. Step 6: Final answer
    x = 23,571.59

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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.