Home / 38,924.86-53,716.47-21,929.31

Finding the Fourth Proportional to 38,924.86, 53,716.47 and 21,929.31

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Solution

The fourth proportional to 38,924.86, 53,716.47 and 21,929.31 is: 30,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,924.86 : 53,716.47 = 21,929.31 : x
  2. Step 2: Convert to fraction form
    38,924.86/53,716.47 = 21,929.31/x
  3. Step 3: Cross multiply
    38,924.86x = 53,716.47 × 21,929.31
  4. Step 4: Simplify right side
    38,924.86x = 1,177,964,854.15
  5. Step 5: Solve for x
    x = 1,177,964,854.15/38,924.86
  6. Step 6: Final answer
    x = 30,262.53

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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.