Home / 38,438.75-53,045.89-21,442.86

Finding the Fourth Proportional to 38,438.75, 53,045.89 and 21,442.86

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Solution

The fourth proportional to 38,438.75, 53,045.89 and 21,442.86 is: 29,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.75 : 53,045.89 = 21,442.86 : x
  2. Step 2: Convert to fraction form
    38,438.75/53,045.89 = 21,442.86/x
  3. Step 3: Cross multiply
    38,438.75x = 53,045.89 × 21,442.86
  4. Step 4: Simplify right side
    38,438.75x = 1,137,455,500.09
  5. Step 5: Solve for x
    x = 1,137,455,500.09/38,438.75
  6. Step 6: Final answer
    x = 29,591.38

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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.