Home / 40,069.83-55,296.36-21,920.70

Finding the Fourth Proportional to 40,069.83, 55,296.36 and 21,920.70

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Solution

The fourth proportional to 40,069.83, 55,296.36 and 21,920.70 is: 30,250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,069.83 : 55,296.36 = 21,920.70 : x
  2. Step 2: Convert to fraction form
    40,069.83/55,296.36 = 21,920.70/x
  3. Step 3: Cross multiply
    40,069.83x = 55,296.36 × 21,920.70
  4. Step 4: Simplify right side
    40,069.83x = 1,212,134,918.65
  5. Step 5: Solve for x
    x = 1,212,134,918.65/40,069.83
  6. Step 6: Final answer
    x = 30,250.56

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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.