Home / 26,142.18-39,209.13-21,728.19

Finding the Fourth Proportional to 26,142.18, 39,209.13 and 21,728.19

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Solution

The fourth proportional to 26,142.18, 39,209.13 and 21,728.19 is: 32,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.18 : 39,209.13 = 21,728.19 : x
  2. Step 2: Convert to fraction form
    26,142.18/39,209.13 = 21,728.19/x
  3. Step 3: Cross multiply
    26,142.18x = 39,209.13 × 21,728.19
  4. Step 4: Simplify right side
    26,142.18x = 851,943,426.37
  5. Step 5: Solve for x
    x = 851,943,426.37/26,142.18
  6. Step 6: Final answer
    x = 32,588.84

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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.