Home / 20,263.74-27,965.37-11,313

Finding the Fourth Proportional to 20,263.74, 27,965.37 and 11,313

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Solution

The fourth proportional to 20,263.74, 27,965.37 and 11,313 is: 15,612.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.74 : 27,965.37 = 11,313 : x
  2. Step 2: Convert to fraction form
    20,263.74/27,965.37 = 11,313/x
  3. Step 3: Cross multiply
    20,263.74x = 27,965.37 × 11,313
  4. Step 4: Simplify right side
    20,263.74x = 316,372,230.81
  5. Step 5: Solve for x
    x = 316,372,230.81/20,263.74
  6. Step 6: Final answer
    x = 15,612.73

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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.