Home / 28,333.70-42,500.58-7,557.20

Finding the Fourth Proportional to 28,333.70, 42,500.58 and 7,557.20

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Solution

The fourth proportional to 28,333.70, 42,500.58 and 7,557.20 is: 11,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.70 : 42,500.58 = 7,557.20 : x
  2. Step 2: Convert to fraction form
    28,333.70/42,500.58 = 7,557.20/x
  3. Step 3: Cross multiply
    28,333.70x = 42,500.58 × 7,557.20
  4. Step 4: Simplify right side
    28,333.70x = 321,185,383.18
  5. Step 5: Solve for x
    x = 321,185,383.18/28,333.70
  6. Step 6: Final answer
    x = 11,335.81

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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.