Home / 28,917.12-43,414.08-18,533.76

Finding the Fourth Proportional to 28,917.12, 43,414.08 and 18,533.76

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Solution

The fourth proportional to 28,917.12, 43,414.08 and 18,533.76 is: 27,825.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.12 : 43,414.08 = 18,533.76 : x
  2. Step 2: Convert to fraction form
    28,917.12/43,414.08 = 18,533.76/x
  3. Step 3: Cross multiply
    28,917.12x = 43,414.08 × 18,533.76
  4. Step 4: Simplify right side
    28,917.12x = 804,626,139.34
  5. Step 5: Solve for x
    x = 804,626,139.34/28,917.12
  6. Step 6: Final answer
    x = 27,825.25

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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.