Home / 52,382.17-78,571.14-12,938.28

Finding the Fourth Proportional to 52,382.17, 78,571.14 and 12,938.28

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Solution

The fourth proportional to 52,382.17, 78,571.14 and 12,938.28 is: 19,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,382.17 : 78,571.14 = 12,938.28 : x
  2. Step 2: Convert to fraction form
    52,382.17/78,571.14 = 12,938.28/x
  3. Step 3: Cross multiply
    52,382.17x = 78,571.14 × 12,938.28
  4. Step 4: Simplify right side
    52,382.17x = 1,016,575,409.24
  5. Step 5: Solve for x
    x = 1,016,575,409.24/52,382.17
  6. Step 6: Final answer
    x = 19,406.90

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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.