Home / 38,945.91-53,746.96-21,950.87

Finding the Fourth Proportional to 38,945.91, 53,746.96 and 21,950.87

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Solution

The fourth proportional to 38,945.91, 53,746.96 and 21,950.87 is: 30,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,945.91 : 53,746.96 = 21,950.87 : x
  2. Step 2: Convert to fraction form
    38,945.91/53,746.96 = 21,950.87/x
  3. Step 3: Cross multiply
    38,945.91x = 53,746.96 × 21,950.87
  4. Step 4: Simplify right side
    38,945.91x = 1,179,792,531.86
  5. Step 5: Solve for x
    x = 1,179,792,531.86/38,945.91
  6. Step 6: Final answer
    x = 30,293.10

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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.