Home / 38,733.48-53,447.81-21,734.21

Finding the Fourth Proportional to 38,733.48, 53,447.81 and 21,734.21

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Solution

The fourth proportional to 38,733.48, 53,447.81 and 21,734.21 is: 29,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,733.48 : 53,447.81 = 21,734.21 : x
  2. Step 2: Convert to fraction form
    38,733.48/53,447.81 = 21,734.21/x
  3. Step 3: Cross multiply
    38,733.48x = 53,447.81 × 21,734.21
  4. Step 4: Simplify right side
    38,733.48x = 1,161,645,926.58
  5. Step 5: Solve for x
    x = 1,161,645,926.58/38,733.48
  6. Step 6: Final answer
    x = 29,990.75

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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.