Home / 28,433.76-42,632.40-11,805.27

Finding the Fourth Proportional to 28,433.76, 42,632.40 and 11,805.27

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Solution

The fourth proportional to 28,433.76, 42,632.40 and 11,805.27 is: 17,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.76 : 42,632.40 = 11,805.27 : x
  2. Step 2: Convert to fraction form
    28,433.76/42,632.40 = 11,805.27/x
  3. Step 3: Cross multiply
    28,433.76x = 42,632.40 × 11,805.27
  4. Step 4: Simplify right side
    28,433.76x = 503,287,130.48
  5. Step 5: Solve for x
    x = 503,287,130.48/28,433.76
  6. Step 6: Final answer
    x = 17,700.33

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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.