Home / 20,500.98-30,761.04-8,017.77

Finding the Fourth Proportional to 20,500.98, 30,761.04 and 8,017.77

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Solution

The fourth proportional to 20,500.98, 30,761.04 and 8,017.77 is: 12,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.98 : 30,761.04 = 8,017.77 : x
  2. Step 2: Convert to fraction form
    20,500.98/30,761.04 = 8,017.77/x
  3. Step 3: Cross multiply
    20,500.98x = 30,761.04 × 8,017.77
  4. Step 4: Simplify right side
    20,500.98x = 246,634,943.68
  5. Step 5: Solve for x
    x = 246,634,943.68/20,500.98
  6. Step 6: Final answer
    x = 12,030.40

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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.