Home / 39,825.78-59,747.94-13,530.57

Finding the Fourth Proportional to 39,825.78, 59,747.94 and 13,530.57

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Solution

The fourth proportional to 39,825.78, 59,747.94 and 13,530.57 is: 20,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.78 : 59,747.94 = 13,530.57 : x
  2. Step 2: Convert to fraction form
    39,825.78/59,747.94 = 13,530.57/x
  3. Step 3: Cross multiply
    39,825.78x = 59,747.94 × 13,530.57
  4. Step 4: Simplify right side
    39,825.78x = 808,423,684.53
  5. Step 5: Solve for x
    x = 808,423,684.53/39,825.78
  6. Step 6: Final answer
    x = 20,299.00

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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.