Home / 19,553.86-29,328.81-5,512.78

Finding the Fourth Proportional to 19,553.86, 29,328.81 and 5,512.78

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Solution

The fourth proportional to 19,553.86, 29,328.81 and 5,512.78 is: 8,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.86 : 29,328.81 = 5,512.78 : x
  2. Step 2: Convert to fraction form
    19,553.86/29,328.81 = 5,512.78/x
  3. Step 3: Cross multiply
    19,553.86x = 29,328.81 × 5,512.78
  4. Step 4: Simplify right side
    19,553.86x = 161,683,277.19
  5. Step 5: Solve for x
    x = 161,683,277.19/19,553.86
  6. Step 6: Final answer
    x = 8,268.61

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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.