Home / 20,210.15-27,893.76-11,717.76

Finding the Fourth Proportional to 20,210.15, 27,893.76 and 11,717.76

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Solution

The fourth proportional to 20,210.15, 27,893.76 and 11,717.76 is: 16,172.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.15 : 27,893.76 = 11,717.76 : x
  2. Step 2: Convert to fraction form
    20,210.15/27,893.76 = 11,717.76/x
  3. Step 3: Cross multiply
    20,210.15x = 27,893.76 × 11,717.76
  4. Step 4: Simplify right side
    20,210.15x = 326,852,385.18
  5. Step 5: Solve for x
    x = 326,852,385.18/20,210.15
  6. Step 6: Final answer
    x = 16,172.68

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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.