Home / 39,970.14-59,955.39-10,385.88

Finding the Fourth Proportional to 39,970.14, 59,955.39 and 10,385.88

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Solution

The fourth proportional to 39,970.14, 59,955.39 and 10,385.88 is: 15,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.14 : 59,955.39 = 10,385.88 : x
  2. Step 2: Convert to fraction form
    39,970.14/59,955.39 = 10,385.88/x
  3. Step 3: Cross multiply
    39,970.14x = 59,955.39 × 10,385.88
  4. Step 4: Simplify right side
    39,970.14x = 622,689,485.89
  5. Step 5: Solve for x
    x = 622,689,485.89/39,970.14
  6. Step 6: Final answer
    x = 15,578.87

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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.