Home / 26,840.81-37,075.17-20,428.44

Finding the Fourth Proportional to 26,840.81, 37,075.17 and 20,428.44

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Solution

The fourth proportional to 26,840.81, 37,075.17 and 20,428.44 is: 28,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,840.81 : 37,075.17 = 20,428.44 : x
  2. Step 2: Convert to fraction form
    26,840.81/37,075.17 = 20,428.44/x
  3. Step 3: Cross multiply
    26,840.81x = 37,075.17 × 20,428.44
  4. Step 4: Simplify right side
    26,840.81x = 757,387,885.83
  5. Step 5: Solve for x
    x = 757,387,885.83/26,840.81
  6. Step 6: Final answer
    x = 28,217.78

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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.