Home / 28,615.03-42,927.92-11,519.22

Finding the Fourth Proportional to 28,615.03, 42,927.92 and 11,519.22

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Solution

The fourth proportional to 28,615.03, 42,927.92 and 11,519.22 is: 17,280.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.03 : 42,927.92 = 11,519.22 : x
  2. Step 2: Convert to fraction form
    28,615.03/42,927.92 = 11,519.22/x
  3. Step 3: Cross multiply
    28,615.03x = 42,927.92 × 11,519.22
  4. Step 4: Simplify right side
    28,615.03x = 494,496,154.62
  5. Step 5: Solve for x
    x = 494,496,154.62/28,615.03
  6. Step 6: Final answer
    x = 17,280.99

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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.