Home / 28,400.68-42,603.42-7,625.32

Finding the Fourth Proportional to 28,400.68, 42,603.42 and 7,625.32

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Solution

The fourth proportional to 28,400.68, 42,603.42 and 7,625.32 is: 11,438.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.68 : 42,603.42 = 7,625.32 : x
  2. Step 2: Convert to fraction form
    28,400.68/42,603.42 = 7,625.32/x
  3. Step 3: Cross multiply
    28,400.68x = 42,603.42 × 7,625.32
  4. Step 4: Simplify right side
    28,400.68x = 324,864,710.59
  5. Step 5: Solve for x
    x = 324,864,710.59/28,400.68
  6. Step 6: Final answer
    x = 11,438.62

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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.