Home / 28,821.15-43,228.08-9,101.70

Finding the Fourth Proportional to 28,821.15, 43,228.08 and 9,101.70

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Solution

The fourth proportional to 28,821.15, 43,228.08 and 9,101.70 is: 13,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.15 : 43,228.08 = 9,101.70 : x
  2. Step 2: Convert to fraction form
    28,821.15/43,228.08 = 9,101.70/x
  3. Step 3: Cross multiply
    28,821.15x = 43,228.08 × 9,101.70
  4. Step 4: Simplify right side
    28,821.15x = 393,449,015.74
  5. Step 5: Solve for x
    x = 393,449,015.74/28,821.15
  6. Step 6: Final answer
    x = 13,651.40

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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.