Home / 20,767.68-31,108.32-14,083.20

Finding the Fourth Proportional to 20,767.68, 31,108.32 and 14,083.20

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Solution

The fourth proportional to 20,767.68, 31,108.32 and 14,083.20 is: 21,095.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.68 : 31,108.32 = 14,083.20 : x
  2. Step 2: Convert to fraction form
    20,767.68/31,108.32 = 14,083.20/x
  3. Step 3: Cross multiply
    20,767.68x = 31,108.32 × 14,083.20
  4. Step 4: Simplify right side
    20,767.68x = 438,104,692.22
  5. Step 5: Solve for x
    x = 438,104,692.22/20,767.68
  6. Step 6: Final answer
    x = 21,095.50

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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.