Home / 20,963.46-28,926.38-12,465.42

Finding the Fourth Proportional to 20,963.46, 28,926.38 and 12,465.42

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Solution

The fourth proportional to 20,963.46, 28,926.38 and 12,465.42 is: 17,200.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.46 : 28,926.38 = 12,465.42 : x
  2. Step 2: Convert to fraction form
    20,963.46/28,926.38 = 12,465.42/x
  3. Step 3: Cross multiply
    20,963.46x = 28,926.38 × 12,465.42
  4. Step 4: Simplify right side
    20,963.46x = 360,579,475.78
  5. Step 5: Solve for x
    x = 360,579,475.78/20,963.46
  6. Step 6: Final answer
    x = 17,200.38

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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.