Home / 34,860.78-48,104.28-20,710.89

Finding the Fourth Proportional to 34,860.78, 48,104.28 and 20,710.89

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Solution

The fourth proportional to 34,860.78, 48,104.28 and 20,710.89 is: 28,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,860.78 : 48,104.28 = 20,710.89 : x
  2. Step 2: Convert to fraction form
    34,860.78/48,104.28 = 20,710.89/x
  3. Step 3: Cross multiply
    34,860.78x = 48,104.28 × 20,710.89
  4. Step 4: Simplify right side
    34,860.78x = 996,282,451.61
  5. Step 5: Solve for x
    x = 996,282,451.61/34,860.78
  6. Step 6: Final answer
    x = 28,578.89

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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.