Home / 26,136.60-39,140.10-20,952.60

Finding the Fourth Proportional to 26,136.60, 39,140.10 and 20,952.60

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Solution

The fourth proportional to 26,136.60, 39,140.10 and 20,952.60 is: 31,376.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,136.60 : 39,140.10 = 20,952.60 : x
  2. Step 2: Convert to fraction form
    26,136.60/39,140.10 = 20,952.60/x
  3. Step 3: Cross multiply
    26,136.60x = 39,140.10 × 20,952.60
  4. Step 4: Simplify right side
    26,136.60x = 820,086,859.26
  5. Step 5: Solve for x
    x = 820,086,859.26/26,136.60
  6. Step 6: Final answer
    x = 31,376.95

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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.