Home / 19,451.02-29,129.76-11,105.75

Finding the Fourth Proportional to 19,451.02, 29,129.76 and 11,105.75

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Solution

The fourth proportional to 19,451.02, 29,129.76 and 11,105.75 is: 16,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.02 : 29,129.76 = 11,105.75 : x
  2. Step 2: Convert to fraction form
    19,451.02/29,129.76 = 11,105.75/x
  3. Step 3: Cross multiply
    19,451.02x = 29,129.76 × 11,105.75
  4. Step 4: Simplify right side
    19,451.02x = 323,507,746.98
  5. Step 5: Solve for x
    x = 323,507,746.98/19,451.02
  6. Step 6: Final answer
    x = 16,631.91

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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.