Home / 20,952.46-28,914.90-11,392.91

Finding the Fourth Proportional to 20,952.46, 28,914.90 and 11,392.91

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Solution

The fourth proportional to 20,952.46, 28,914.90 and 11,392.91 is: 15,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.46 : 28,914.90 = 11,392.91 : x
  2. Step 2: Convert to fraction form
    20,952.46/28,914.90 = 11,392.91/x
  3. Step 3: Cross multiply
    20,952.46x = 28,914.90 × 11,392.91
  4. Step 4: Simplify right side
    20,952.46x = 329,424,853.36
  5. Step 5: Solve for x
    x = 329,424,853.36/20,952.46
  6. Step 6: Final answer
    x = 15,722.49

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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.