Home / 38,724.16-53,445.38-21,735.29

Finding the Fourth Proportional to 38,724.16, 53,445.38 and 21,735.29

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Solution

The fourth proportional to 38,724.16, 53,445.38 and 21,735.29 is: 29,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,724.16 : 53,445.38 = 21,735.29 : x
  2. Step 2: Convert to fraction form
    38,724.16/53,445.38 = 21,735.29/x
  3. Step 3: Cross multiply
    38,724.16x = 53,445.38 × 21,735.29
  4. Step 4: Simplify right side
    38,724.16x = 1,161,650,833.46
  5. Step 5: Solve for x
    x = 1,161,650,833.46/38,724.16
  6. Step 6: Final answer
    x = 29,998.09

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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.