Home / 40,339.71-55,667.83-21,942.36

Finding the Fourth Proportional to 40,339.71, 55,667.83 and 21,942.36

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Solution

The fourth proportional to 40,339.71, 55,667.83 and 21,942.36 is: 30,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,339.71 : 55,667.83 = 21,942.36 : x
  2. Step 2: Convert to fraction form
    40,339.71/55,667.83 = 21,942.36/x
  3. Step 3: Cross multiply
    40,339.71x = 55,667.83 × 21,942.36
  4. Step 4: Simplify right side
    40,339.71x = 1,221,483,566.28
  5. Step 5: Solve for x
    x = 1,221,483,566.28/40,339.71
  6. Step 6: Final answer
    x = 30,279.93

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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.