Home / 34,728.64-47,907.92-21,960.30

Finding the Fourth Proportional to 34,728.64, 47,907.92 and 21,960.30

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Solution

The fourth proportional to 34,728.64, 47,907.92 and 21,960.30 is: 30,294.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,728.64 : 47,907.92 = 21,960.30 : x
  2. Step 2: Convert to fraction form
    34,728.64/47,907.92 = 21,960.30/x
  3. Step 3: Cross multiply
    34,728.64x = 47,907.92 × 21,960.30
  4. Step 4: Simplify right side
    34,728.64x = 1,052,072,295.58
  5. Step 5: Solve for x
    x = 1,052,072,295.58/34,728.64
  6. Step 6: Final answer
    x = 30,294.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.