Home / 39,639.78-59,460.08-13,344.55

Finding the Fourth Proportional to 39,639.78, 59,460.08 and 13,344.55

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Solution

The fourth proportional to 39,639.78, 59,460.08 and 13,344.55 is: 20,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,639.78 : 59,460.08 = 13,344.55 : x
  2. Step 2: Convert to fraction form
    39,639.78/59,460.08 = 13,344.55/x
  3. Step 3: Cross multiply
    39,639.78x = 59,460.08 × 13,344.55
  4. Step 4: Simplify right side
    39,639.78x = 793,467,795.19
  5. Step 5: Solve for x
    x = 793,467,795.19/39,639.78
  6. Step 6: Final answer
    x = 20,016.96

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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.