Home / 28,476.64-39,295.36-15,901.12

Finding the Fourth Proportional to 28,476.64, 39,295.36 and 15,901.12

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Solution

The fourth proportional to 28,476.64, 39,295.36 and 15,901.12 is: 21,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.64 : 39,295.36 = 15,901.12 : x
  2. Step 2: Convert to fraction form
    28,476.64/39,295.36 = 15,901.12/x
  3. Step 3: Cross multiply
    28,476.64x = 39,295.36 × 15,901.12
  4. Step 4: Simplify right side
    28,476.64x = 624,840,234.80
  5. Step 5: Solve for x
    x = 624,840,234.80/28,476.64
  6. Step 6: Final answer
    x = 21,942.20

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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.