Home / 40,386.12-60,581.64-12,684.12

Finding the Fourth Proportional to 40,386.12, 60,581.64 and 12,684.12

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Solution

The fourth proportional to 40,386.12, 60,581.64 and 12,684.12 is: 19,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386.12 : 60,581.64 = 12,684.12 : x
  2. Step 2: Convert to fraction form
    40,386.12/60,581.64 = 12,684.12/x
  3. Step 3: Cross multiply
    40,386.12x = 60,581.64 × 12,684.12
  4. Step 4: Simplify right side
    40,386.12x = 768,424,791.56
  5. Step 5: Solve for x
    x = 768,424,791.56/40,386.12
  6. Step 6: Final answer
    x = 19,026.95

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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.