Home / 34,890.66-48,153.78-19,788.80

Finding the Fourth Proportional to 34,890.66, 48,153.78 and 19,788.80

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Solution

The fourth proportional to 34,890.66, 48,153.78 and 19,788.80 is: 27,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,890.66 : 48,153.78 = 19,788.80 : x
  2. Step 2: Convert to fraction form
    34,890.66/48,153.78 = 19,788.80/x
  3. Step 3: Cross multiply
    34,890.66x = 48,153.78 × 19,788.80
  4. Step 4: Simplify right side
    34,890.66x = 952,905,280.90
  5. Step 5: Solve for x
    x = 952,905,280.90/34,890.66
  6. Step 6: Final answer
    x = 27,311.19

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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.