Home / 20,924.82-28,876.15-11,364.63

Finding the Fourth Proportional to 20,924.82, 28,876.15 and 11,364.63

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Solution

The fourth proportional to 20,924.82, 28,876.15 and 11,364.63 is: 15,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.82 : 28,876.15 = 11,364.63 : x
  2. Step 2: Convert to fraction form
    20,924.82/28,876.15 = 11,364.63/x
  3. Step 3: Cross multiply
    20,924.82x = 28,876.15 × 11,364.63
  4. Step 4: Simplify right side
    20,924.82x = 328,166,760.57
  5. Step 5: Solve for x
    x = 328,166,760.57/20,924.82
  6. Step 6: Final answer
    x = 15,683.13

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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.