Home / 39,913.74-55,081.11-22,008.40

Finding the Fourth Proportional to 39,913.74, 55,081.11 and 22,008.40

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Solution

The fourth proportional to 39,913.74, 55,081.11 and 22,008.40 is: 30,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.74 : 55,081.11 = 22,008.40 : x
  2. Step 2: Convert to fraction form
    39,913.74/55,081.11 = 22,008.40/x
  3. Step 3: Cross multiply
    39,913.74x = 55,081.11 × 22,008.40
  4. Step 4: Simplify right side
    39,913.74x = 1,212,247,101.32
  5. Step 5: Solve for x
    x = 1,212,247,101.32/39,913.74
  6. Step 6: Final answer
    x = 30,371.67

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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.