Home / 28,273.50-39,017.94-15,527.88

Finding the Fourth Proportional to 28,273.50, 39,017.94 and 15,527.88

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Solution

The fourth proportional to 28,273.50, 39,017.94 and 15,527.88 is: 21,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.50 : 39,017.94 = 15,527.88 : x
  2. Step 2: Convert to fraction form
    28,273.50/39,017.94 = 15,527.88/x
  3. Step 3: Cross multiply
    28,273.50x = 39,017.94 × 15,527.88
  4. Step 4: Simplify right side
    28,273.50x = 605,865,890.17
  5. Step 5: Solve for x
    x = 605,865,890.17/28,273.50
  6. Step 6: Final answer
    x = 21,428.75

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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.