Home / 26,409.78-39,538.08-20,548.62

Finding the Fourth Proportional to 26,409.78, 39,538.08 and 20,548.62

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Solution

The fourth proportional to 26,409.78, 39,538.08 and 20,548.62 is: 30,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,409.78 : 39,538.08 = 20,548.62 : x
  2. Step 2: Convert to fraction form
    26,409.78/39,538.08 = 20,548.62/x
  3. Step 3: Cross multiply
    26,409.78x = 39,538.08 × 20,548.62
  4. Step 4: Simplify right side
    26,409.78x = 812,452,981.45
  5. Step 5: Solve for x
    x = 812,452,981.45/26,409.78
  6. Step 6: Final answer
    x = 30,763.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.