Home / 38,960.78-58,404.40-18,957.62

Finding the Fourth Proportional to 38,960.78, 58,404.40 and 18,957.62

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Solution

The fourth proportional to 38,960.78, 58,404.40 and 18,957.62 is: 28,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,960.78 : 58,404.40 = 18,957.62 : x
  2. Step 2: Convert to fraction form
    38,960.78/58,404.40 = 18,957.62/x
  3. Step 3: Cross multiply
    38,960.78x = 58,404.40 × 18,957.62
  4. Step 4: Simplify right side
    38,960.78x = 1,107,208,421.53
  5. Step 5: Solve for x
    x = 1,107,208,421.53/38,960.78
  6. Step 6: Final answer
    x = 28,418.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.