Home / 28,519.03-42,742.90-13,723.98

Finding the Fourth Proportional to 28,519.03, 42,742.90 and 13,723.98

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Solution

The fourth proportional to 28,519.03, 42,742.90 and 13,723.98 is: 20,568.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.03 : 42,742.90 = 13,723.98 : x
  2. Step 2: Convert to fraction form
    28,519.03/42,742.90 = 13,723.98/x
  3. Step 3: Cross multiply
    28,519.03x = 42,742.90 × 13,723.98
  4. Step 4: Simplify right side
    28,519.03x = 586,602,704.74
  5. Step 5: Solve for x
    x = 586,602,704.74/28,519.03
  6. Step 6: Final answer
    x = 20,568.82

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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.