Home / 28,295.16-39,046.62-15,719.94

Finding the Fourth Proportional to 28,295.16, 39,046.62 and 15,719.94

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Solution

The fourth proportional to 28,295.16, 39,046.62 and 15,719.94 is: 21,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.16 : 39,046.62 = 15,719.94 : x
  2. Step 2: Convert to fraction form
    28,295.16/39,046.62 = 15,719.94/x
  3. Step 3: Cross multiply
    28,295.16x = 39,046.62 × 15,719.94
  4. Step 4: Simplify right side
    28,295.16x = 613,810,523.60
  5. Step 5: Solve for x
    x = 613,810,523.60/28,295.16
  6. Step 6: Final answer
    x = 21,693.13

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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.