Home / 28,401.40-42,563.22-18,020.44

Finding the Fourth Proportional to 28,401.40, 42,563.22 and 18,020.44

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Solution

The fourth proportional to 28,401.40, 42,563.22 and 18,020.44 is: 27,005.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.40 : 42,563.22 = 18,020.44 : x
  2. Step 2: Convert to fraction form
    28,401.40/42,563.22 = 18,020.44/x
  3. Step 3: Cross multiply
    28,401.40x = 42,563.22 × 18,020.44
  4. Step 4: Simplify right side
    28,401.40x = 767,007,952.22
  5. Step 5: Solve for x
    x = 767,007,952.22/28,401.40
  6. Step 6: Final answer
    x = 27,005.99

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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.