Home / 28,620.30-39,496.47-18,552.78

Finding the Fourth Proportional to 28,620.30, 39,496.47 and 18,552.78

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Solution

The fourth proportional to 28,620.30, 39,496.47 and 18,552.78 is: 25,603.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.30 : 39,496.47 = 18,552.78 : x
  2. Step 2: Convert to fraction form
    28,620.30/39,496.47 = 18,552.78/x
  3. Step 3: Cross multiply
    28,620.30x = 39,496.47 × 18,552.78
  4. Step 4: Simplify right side
    28,620.30x = 732,769,318.69
  5. Step 5: Solve for x
    x = 732,769,318.69/28,620.30
  6. Step 6: Final answer
    x = 25,603.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.