Home / 26,311.20-39,466.80-21,390.45

Finding the Fourth Proportional to 26,311.20, 39,466.80 and 21,390.45

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Solution

The fourth proportional to 26,311.20, 39,466.80 and 21,390.45 is: 32,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,311.20 : 39,466.80 = 21,390.45 : x
  2. Step 2: Convert to fraction form
    26,311.20/39,466.80 = 21,390.45/x
  3. Step 3: Cross multiply
    26,311.20x = 39,466.80 × 21,390.45
  4. Step 4: Simplify right side
    26,311.20x = 844,212,612.06
  5. Step 5: Solve for x
    x = 844,212,612.06/26,311.20
  6. Step 6: Final answer
    x = 32,085.68

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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.