Home / 20,897.26-28,838.72-11,465.82

Finding the Fourth Proportional to 20,897.26, 28,838.72 and 11,465.82

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Solution

The fourth proportional to 20,897.26, 28,838.72 and 11,465.82 is: 15,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.26 : 28,838.72 = 11,465.82 : x
  2. Step 2: Convert to fraction form
    20,897.26/28,838.72 = 11,465.82/x
  3. Step 3: Cross multiply
    20,897.26x = 28,838.72 × 11,465.82
  4. Step 4: Simplify right side
    20,897.26x = 330,659,572.55
  5. Step 5: Solve for x
    x = 330,659,572.55/20,897.26
  6. Step 6: Final answer
    x = 15,823.11

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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.