Home / 40,045.62-55,263.12-21,896.72

Finding the Fourth Proportional to 40,045.62, 55,263.12 and 21,896.72

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Solution

The fourth proportional to 40,045.62, 55,263.12 and 21,896.72 is: 30,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,045.62 : 55,263.12 = 21,896.72 : x
  2. Step 2: Convert to fraction form
    40,045.62/55,263.12 = 21,896.72/x
  3. Step 3: Cross multiply
    40,045.62x = 55,263.12 × 21,896.72
  4. Step 4: Simplify right side
    40,045.62x = 1,210,081,064.97
  5. Step 5: Solve for x
    x = 1,210,081,064.97/40,045.62
  6. Step 6: Final answer
    x = 30,217.56

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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.