Home / 39,811.05-59,699.28-12,102.57

Finding the Fourth Proportional to 39,811.05, 59,699.28 and 12,102.57

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Solution

The fourth proportional to 39,811.05, 59,699.28 and 12,102.57 is: 18,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.05 : 59,699.28 = 12,102.57 : x
  2. Step 2: Convert to fraction form
    39,811.05/59,699.28 = 12,102.57/x
  3. Step 3: Cross multiply
    39,811.05x = 59,699.28 × 12,102.57
  4. Step 4: Simplify right side
    39,811.05x = 722,514,715.15
  5. Step 5: Solve for x
    x = 722,514,715.15/39,811.05
  6. Step 6: Final answer
    x = 18,148.60

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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.