Home / 20,498.95-30,755.85-7,173.91

Finding the Fourth Proportional to 20,498.95, 30,755.85 and 7,173.91

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Solution

The fourth proportional to 20,498.95, 30,755.85 and 7,173.91 is: 10,763.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.95 : 30,755.85 = 7,173.91 : x
  2. Step 2: Convert to fraction form
    20,498.95/30,755.85 = 7,173.91/x
  3. Step 3: Cross multiply
    20,498.95x = 30,755.85 × 7,173.91
  4. Step 4: Simplify right side
    20,498.95x = 220,639,699.87
  5. Step 5: Solve for x
    x = 220,639,699.87/20,498.95
  6. Step 6: Final answer
    x = 10,763.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.