Home / 20,642.04-30,962.52-7,314.84

Finding the Fourth Proportional to 20,642.04, 30,962.52 and 7,314.84

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Solution

The fourth proportional to 20,642.04, 30,962.52 and 7,314.84 is: 10,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642.04 : 30,962.52 = 7,314.84 : x
  2. Step 2: Convert to fraction form
    20,642.04/30,962.52 = 7,314.84/x
  3. Step 3: Cross multiply
    20,642.04x = 30,962.52 × 7,314.84
  4. Step 4: Simplify right side
    20,642.04x = 226,485,879.80
  5. Step 5: Solve for x
    x = 226,485,879.80/20,642.04
  6. Step 6: Final answer
    x = 10,972.07

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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.