Home / 20,924.01-28,864.98-13,856.34

Finding the Fourth Proportional to 20,924.01, 28,864.98 and 13,856.34

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Solution

The fourth proportional to 20,924.01, 28,864.98 and 13,856.34 is: 19,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.01 : 28,864.98 = 13,856.34 : x
  2. Step 2: Convert to fraction form
    20,924.01/28,864.98 = 13,856.34/x
  3. Step 3: Cross multiply
    20,924.01x = 28,864.98 × 13,856.34
  4. Step 4: Simplify right side
    20,924.01x = 399,962,976.97
  5. Step 5: Solve for x
    x = 399,962,976.97/20,924.01
  6. Step 6: Final answer
    x = 19,115.03

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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.