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Finding the Fourth Proportional to 19,661.01, 29,452.50 and 9,280.05

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Solution

The fourth proportional to 19,661.01, 29,452.50 and 9,280.05 is: 13,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.01 : 29,452.50 = 9,280.05 : x
  2. Step 2: Convert to fraction form
    19,661.01/29,452.50 = 9,280.05/x
  3. Step 3: Cross multiply
    19,661.01x = 29,452.50 × 9,280.05
  4. Step 4: Simplify right side
    19,661.01x = 273,320,672.63
  5. Step 5: Solve for x
    x = 273,320,672.63/19,661.01
  6. Step 6: Final answer
    x = 13,901.66

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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.