Home / 15,853.73-21,833.85-15,509.27

Finding the Fourth Proportional to 15,853.73, 21,833.85 and 15,509.27

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Solution

The fourth proportional to 15,853.73, 21,833.85 and 15,509.27 is: 21,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853.73 : 21,833.85 = 15,509.27 : x
  2. Step 2: Convert to fraction form
    15,853.73/21,833.85 = 15,509.27/x
  3. Step 3: Cross multiply
    15,853.73x = 21,833.85 × 15,509.27
  4. Step 4: Simplify right side
    15,853.73x = 338,627,187.53
  5. Step 5: Solve for x
    x = 338,627,187.53/15,853.73
  6. Step 6: Final answer
    x = 21,359.47

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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.