Home / 40,390.81-60,568.39-21,665.23

Finding the Fourth Proportional to 40,390.81, 60,568.39 and 21,665.23

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Solution

The fourth proportional to 40,390.81, 60,568.39 and 21,665.23 is: 32,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,390.81 : 60,568.39 = 21,665.23 : x
  2. Step 2: Convert to fraction form
    40,390.81/60,568.39 = 21,665.23/x
  3. Step 3: Cross multiply
    40,390.81x = 60,568.39 × 21,665.23
  4. Step 4: Simplify right side
    40,390.81x = 1,312,228,100.08
  5. Step 5: Solve for x
    x = 1,312,228,100.08/40,390.81
  6. Step 6: Final answer
    x = 32,488.28

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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.