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Finding the Fourth Proportional to 28,502.54, 39,333.22 and 15,927.29

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Solution

The fourth proportional to 28,502.54, 39,333.22 and 15,927.29 is: 21,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.54 : 39,333.22 = 15,927.29 : x
  2. Step 2: Convert to fraction form
    28,502.54/39,333.22 = 15,927.29/x
  3. Step 3: Cross multiply
    28,502.54x = 39,333.22 × 15,927.29
  4. Step 4: Simplify right side
    28,502.54x = 626,471,365.09
  5. Step 5: Solve for x
    x = 626,471,365.09/28,502.54
  6. Step 6: Final answer
    x = 21,979.50

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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.