Home / 28,250.64-38,986.08-15,675.36

Finding the Fourth Proportional to 28,250.64, 38,986.08 and 15,675.36

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Solution

The fourth proportional to 28,250.64, 38,986.08 and 15,675.36 is: 21,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.64 : 38,986.08 = 15,675.36 : x
  2. Step 2: Convert to fraction form
    28,250.64/38,986.08 = 15,675.36/x
  3. Step 3: Cross multiply
    28,250.64x = 38,986.08 × 15,675.36
  4. Step 4: Simplify right side
    28,250.64x = 611,120,838.99
  5. Step 5: Solve for x
    x = 611,120,838.99/28,250.64
  6. Step 6: Final answer
    x = 21,632.11

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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.