Home / 28,502.79-39,333.56-15,927.54

Finding the Fourth Proportional to 28,502.79, 39,333.56 and 15,927.54

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Solution

The fourth proportional to 28,502.79, 39,333.56 and 15,927.54 is: 21,979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.79 : 39,333.56 = 15,927.54 : x
  2. Step 2: Convert to fraction form
    28,502.79/39,333.56 = 15,927.54/x
  3. Step 3: Cross multiply
    28,502.79x = 39,333.56 × 15,927.54
  4. Step 4: Simplify right side
    28,502.79x = 626,486,850.24
  5. Step 5: Solve for x
    x = 626,486,850.24/28,502.79
  6. Step 6: Final answer
    x = 21,979.84

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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.