Home / 21,910.19-30,260.99-14,727.63

Finding the Fourth Proportional to 21,910.19, 30,260.99 and 14,727.63

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Solution

The fourth proportional to 21,910.19, 30,260.99 and 14,727.63 is: 20,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.19 : 30,260.99 = 14,727.63 : x
  2. Step 2: Convert to fraction form
    21,910.19/30,260.99 = 14,727.63/x
  3. Step 3: Cross multiply
    21,910.19x = 30,260.99 × 14,727.63
  4. Step 4: Simplify right side
    21,910.19x = 445,672,644.23
  5. Step 5: Solve for x
    x = 445,672,644.23/21,910.19
  6. Step 6: Final answer
    x = 20,340.89

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Half scale
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Double scale
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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.