Home / 38,121.59-52,609.90-21,125.48

Finding the Fourth Proportional to 38,121.59, 52,609.90 and 21,125.48

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Solution

The fourth proportional to 38,121.59, 52,609.90 and 21,125.48 is: 29,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.59 : 52,609.90 = 21,125.48 : x
  2. Step 2: Convert to fraction form
    38,121.59/52,609.90 = 21,125.48/x
  3. Step 3: Cross multiply
    38,121.59x = 52,609.90 × 21,125.48
  4. Step 4: Simplify right side
    38,121.59x = 1,111,409,054.58
  5. Step 5: Solve for x
    x = 1,111,409,054.58/38,121.59
  6. Step 6: Final answer
    x = 29,154.32

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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.