Home / 38,725.75-53,441.42-21,500.74

Finding the Fourth Proportional to 38,725.75, 53,441.42 and 21,500.74

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Solution

The fourth proportional to 38,725.75, 53,441.42 and 21,500.74 is: 29,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,725.75 : 53,441.42 = 21,500.74 : x
  2. Step 2: Convert to fraction form
    38,725.75/53,441.42 = 21,500.74/x
  3. Step 3: Cross multiply
    38,725.75x = 53,441.42 × 21,500.74
  4. Step 4: Simplify right side
    38,725.75x = 1,149,030,156.89
  5. Step 5: Solve for x
    x = 1,149,030,156.89/38,725.75
  6. Step 6: Final answer
    x = 29,670.96

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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.