Home / 26,642.39-36,808.36-20,290.50

Finding the Fourth Proportional to 26,642.39, 36,808.36 and 20,290.50

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Solution

The fourth proportional to 26,642.39, 36,808.36 and 20,290.50 is: 28,032.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,642.39 : 36,808.36 = 20,290.50 : x
  2. Step 2: Convert to fraction form
    26,642.39/36,808.36 = 20,290.50/x
  3. Step 3: Cross multiply
    26,642.39x = 36,808.36 × 20,290.50
  4. Step 4: Simplify right side
    26,642.39x = 746,859,977.85
  5. Step 5: Solve for x
    x = 746,859,977.85/26,642.39
  6. Step 6: Final answer
    x = 28,032.77

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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.