Home / 27,605.12-38,106.51-20,892.62

Finding the Fourth Proportional to 27,605.12, 38,106.51 and 20,892.62

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Solution

The fourth proportional to 27,605.12, 38,106.51 and 20,892.62 is: 28,840.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,605.12 : 38,106.51 = 20,892.62 : x
  2. Step 2: Convert to fraction form
    27,605.12/38,106.51 = 20,892.62/x
  3. Step 3: Cross multiply
    27,605.12x = 38,106.51 × 20,892.62
  4. Step 4: Simplify right side
    27,605.12x = 796,144,832.96
  5. Step 5: Solve for x
    x = 796,144,832.96/27,605.12
  6. Step 6: Final answer
    x = 28,840.48

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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.