Home / 38,016.78-52,463.07-20,789.16

Finding the Fourth Proportional to 38,016.78, 52,463.07 and 20,789.16

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Solution

The fourth proportional to 38,016.78, 52,463.07 and 20,789.16 is: 28,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,016.78 : 52,463.07 = 20,789.16 : x
  2. Step 2: Convert to fraction form
    38,016.78/52,463.07 = 20,789.16/x
  3. Step 3: Cross multiply
    38,016.78x = 52,463.07 × 20,789.16
  4. Step 4: Simplify right side
    38,016.78x = 1,090,663,156.32
  5. Step 5: Solve for x
    x = 1,090,663,156.32/38,016.78
  6. Step 6: Final answer
    x = 28,688.99

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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.