Home / 20,893.23-28,832.41-11,332.93

Finding the Fourth Proportional to 20,893.23, 28,832.41 and 11,332.93

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Solution

The fourth proportional to 20,893.23, 28,832.41 and 11,332.93 is: 15,639.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.23 : 28,832.41 = 11,332.93 : x
  2. Step 2: Convert to fraction form
    20,893.23/28,832.41 = 11,332.93/x
  3. Step 3: Cross multiply
    20,893.23x = 28,832.41 × 11,332.93
  4. Step 4: Simplify right side
    20,893.23x = 326,755,677.48
  5. Step 5: Solve for x
    x = 326,755,677.48/20,893.23
  6. Step 6: Final answer
    x = 15,639.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.