Home / 20,937.45-28,893.80-11,377.41

Finding the Fourth Proportional to 20,937.45, 28,893.80 and 11,377.41

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Solution

The fourth proportional to 20,937.45, 28,893.80 and 11,377.41 is: 15,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.45 : 28,893.80 = 11,377.41 : x
  2. Step 2: Convert to fraction form
    20,937.45/28,893.80 = 11,377.41/x
  3. Step 3: Cross multiply
    20,937.45x = 28,893.80 × 11,377.41
  4. Step 4: Simplify right side
    20,937.45x = 328,736,609.06
  5. Step 5: Solve for x
    x = 328,736,609.06/20,937.45
  6. Step 6: Final answer
    x = 15,700.89

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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.