Home / 25,218.54-34,769.05-20,664.27

Finding the Fourth Proportional to 25,218.54, 34,769.05 and 20,664.27

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Solution

The fourth proportional to 25,218.54, 34,769.05 and 20,664.27 is: 28,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,218.54 : 34,769.05 = 20,664.27 : x
  2. Step 2: Convert to fraction form
    25,218.54/34,769.05 = 20,664.27/x
  3. Step 3: Cross multiply
    25,218.54x = 34,769.05 × 20,664.27
  4. Step 4: Simplify right side
    25,218.54x = 718,476,985.18
  5. Step 5: Solve for x
    x = 718,476,985.18/25,218.54
  6. Step 6: Final answer
    x = 28,490.03

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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.