Home / 20,369.95-28,110.06-11,295.27

Finding the Fourth Proportional to 20,369.95, 28,110.06 and 11,295.27

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Solution

The fourth proportional to 20,369.95, 28,110.06 and 11,295.27 is: 15,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.95 : 28,110.06 = 11,295.27 : x
  2. Step 2: Convert to fraction form
    20,369.95/28,110.06 = 11,295.27/x
  3. Step 3: Cross multiply
    20,369.95x = 28,110.06 × 11,295.27
  4. Step 4: Simplify right side
    20,369.95x = 317,510,717.42
  5. Step 5: Solve for x
    x = 317,510,717.42/20,369.95
  6. Step 6: Final answer
    x = 15,587.21

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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.