Home / 28,744.21-43,120.89-9,018.10

Finding the Fourth Proportional to 28,744.21, 43,120.89 and 9,018.10

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Solution

The fourth proportional to 28,744.21, 43,120.89 and 9,018.10 is: 13,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.21 : 43,120.89 = 9,018.10 : x
  2. Step 2: Convert to fraction form
    28,744.21/43,120.89 = 9,018.10/x
  3. Step 3: Cross multiply
    28,744.21x = 43,120.89 × 9,018.10
  4. Step 4: Simplify right side
    28,744.21x = 388,868,498.11
  5. Step 5: Solve for x
    x = 388,868,498.11/28,744.21
  6. Step 6: Final answer
    x = 13,528.59

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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.