Home / 19,003.80-28,510.35-13,392.42

Finding the Fourth Proportional to 19,003.80, 28,510.35 and 13,392.42

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Solution

The fourth proportional to 19,003.80, 28,510.35 and 13,392.42 is: 20,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,003.80 : 28,510.35 = 13,392.42 : x
  2. Step 2: Convert to fraction form
    19,003.80/28,510.35 = 13,392.42/x
  3. Step 3: Cross multiply
    19,003.80x = 28,510.35 × 13,392.42
  4. Step 4: Simplify right side
    19,003.80x = 381,822,424.41
  5. Step 5: Solve for x
    x = 381,822,424.41/19,003.80
  6. Step 6: Final answer
    x = 20,091.90

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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.