Home / 19,661.51-29,453.25-9,280.55

Finding the Fourth Proportional to 19,661.51, 29,453.25 and 9,280.55

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Solution

The fourth proportional to 19,661.51, 29,453.25 and 9,280.55 is: 13,902.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.51 : 29,453.25 = 9,280.55 : x
  2. Step 2: Convert to fraction form
    19,661.51/29,453.25 = 9,280.55/x
  3. Step 3: Cross multiply
    19,661.51x = 29,453.25 × 9,280.55
  4. Step 4: Simplify right side
    19,661.51x = 273,342,359.29
  5. Step 5: Solve for x
    x = 273,342,359.29/19,661.51
  6. Step 6: Final answer
    x = 13,902.41

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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.