Home / 34,158.20-51,237.30-20,103.80

Finding the Fourth Proportional to 34,158.20, 51,237.30 and 20,103.80

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Solution

The fourth proportional to 34,158.20, 51,237.30 and 20,103.80 is: 30,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,158.20 : 51,237.30 = 20,103.80 : x
  2. Step 2: Convert to fraction form
    34,158.20/51,237.30 = 20,103.80/x
  3. Step 3: Cross multiply
    34,158.20x = 51,237.30 × 20,103.80
  4. Step 4: Simplify right side
    34,158.20x = 1,030,064,431.74
  5. Step 5: Solve for x
    x = 1,030,064,431.74/34,158.20
  6. Step 6: Final answer
    x = 30,155.70

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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.