Home / 28,821.36-43,138.08-15,641.04

Finding the Fourth Proportional to 28,821.36, 43,138.08 and 15,641.04

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Solution

The fourth proportional to 28,821.36, 43,138.08 and 15,641.04 is: 23,410.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.36 : 43,138.08 = 15,641.04 : x
  2. Step 2: Convert to fraction form
    28,821.36/43,138.08 = 15,641.04/x
  3. Step 3: Cross multiply
    28,821.36x = 43,138.08 × 15,641.04
  4. Step 4: Simplify right side
    28,821.36x = 674,724,434.80
  5. Step 5: Solve for x
    x = 674,724,434.80/28,821.36
  6. Step 6: Final answer
    x = 23,410.57

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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.