Home / 28,365.27-39,143.52-17,760.75

Finding the Fourth Proportional to 28,365.27, 39,143.52 and 17,760.75

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Solution

The fourth proportional to 28,365.27, 39,143.52 and 17,760.75 is: 24,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.27 : 39,143.52 = 17,760.75 : x
  2. Step 2: Convert to fraction form
    28,365.27/39,143.52 = 17,760.75/x
  3. Step 3: Cross multiply
    28,365.27x = 39,143.52 × 17,760.75
  4. Step 4: Simplify right side
    28,365.27x = 695,218,272.84
  5. Step 5: Solve for x
    x = 695,218,272.84/28,365.27
  6. Step 6: Final answer
    x = 24,509.49

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Half scale
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Double scale
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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.