Home / 28,662.17-39,554.19-15,742.50

Finding the Fourth Proportional to 28,662.17, 39,554.19 and 15,742.50

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Solution

The fourth proportional to 28,662.17, 39,554.19 and 15,742.50 is: 21,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.17 : 39,554.19 = 15,742.50 : x
  2. Step 2: Convert to fraction form
    28,662.17/39,554.19 = 15,742.50/x
  3. Step 3: Cross multiply
    28,662.17x = 39,554.19 × 15,742.50
  4. Step 4: Simplify right side
    28,662.17x = 622,681,836.08
  5. Step 5: Solve for x
    x = 622,681,836.08/28,662.17
  6. Step 6: Final answer
    x = 21,724.87

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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.