Home / 25,930.89-38,902.01-8,400.47

Finding the Fourth Proportional to 25,930.89, 38,902.01 and 8,400.47

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Solution

The fourth proportional to 25,930.89, 38,902.01 and 8,400.47 is: 12,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,930.89 : 38,902.01 = 8,400.47 : x
  2. Step 2: Convert to fraction form
    25,930.89/38,902.01 = 8,400.47/x
  3. Step 3: Cross multiply
    25,930.89x = 38,902.01 × 8,400.47
  4. Step 4: Simplify right side
    25,930.89x = 326,794,931.43
  5. Step 5: Solve for x
    x = 326,794,931.43/25,930.89
  6. Step 6: Final answer
    x = 12,602.53

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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.