Home / 20,320.98-30,482.66-7,841.07

Finding the Fourth Proportional to 20,320.98, 30,482.66 and 7,841.07

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Solution

The fourth proportional to 20,320.98, 30,482.66 and 7,841.07 is: 11,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.98 : 30,482.66 = 7,841.07 : x
  2. Step 2: Convert to fraction form
    20,320.98/30,482.66 = 7,841.07/x
  3. Step 3: Cross multiply
    20,320.98x = 30,482.66 × 7,841.07
  4. Step 4: Simplify right side
    20,320.98x = 239,016,670.85
  5. Step 5: Solve for x
    x = 239,016,670.85/20,320.98
  6. Step 6: Final answer
    x = 11,762.06

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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.