Home / 18,840.51-28,265.49-13,304.70

Finding the Fourth Proportional to 18,840.51, 28,265.49 and 13,304.70

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Solution

The fourth proportional to 18,840.51, 28,265.49 and 13,304.70 is: 19,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.51 : 28,265.49 = 13,304.70 : x
  2. Step 2: Convert to fraction form
    18,840.51/28,265.49 = 13,304.70/x
  3. Step 3: Cross multiply
    18,840.51x = 28,265.49 × 13,304.70
  4. Step 4: Simplify right side
    18,840.51x = 376,063,864.80
  5. Step 5: Solve for x
    x = 376,063,864.80/18,840.51
  6. Step 6: Final answer
    x = 19,960.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.