Home / 19,791.86-27,312.81-10,717.32

Finding the Fourth Proportional to 19,791.86, 27,312.81 and 10,717.32

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Solution

The fourth proportional to 19,791.86, 27,312.81 and 10,717.32 is: 14,789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.86 : 27,312.81 = 10,717.32 : x
  2. Step 2: Convert to fraction form
    19,791.86/27,312.81 = 10,717.32/x
  3. Step 3: Cross multiply
    19,791.86x = 27,312.81 × 10,717.32
  4. Step 4: Simplify right side
    19,791.86x = 292,720,124.87
  5. Step 5: Solve for x
    x = 292,720,124.87/19,791.86
  6. Step 6: Final answer
    x = 14,789.92

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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.