Home / 28,625.73-42,942.50-9,900.75

Finding the Fourth Proportional to 28,625.73, 42,942.50 and 9,900.75

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Solution

The fourth proportional to 28,625.73, 42,942.50 and 9,900.75 is: 14,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.73 : 42,942.50 = 9,900.75 : x
  2. Step 2: Convert to fraction form
    28,625.73/42,942.50 = 9,900.75/x
  3. Step 3: Cross multiply
    28,625.73x = 42,942.50 × 9,900.75
  4. Step 4: Simplify right side
    28,625.73x = 425,162,783.46
  5. Step 5: Solve for x
    x = 425,162,783.46/28,625.73
  6. Step 6: Final answer
    x = 14,852.47

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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.