Home / 28,532.86-42,776.09-11,905.28

Finding the Fourth Proportional to 28,532.86, 42,776.09 and 11,905.28

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Solution

The fourth proportional to 28,532.86, 42,776.09 and 11,905.28 is: 17,848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.86 : 42,776.09 = 11,905.28 : x
  2. Step 2: Convert to fraction form
    28,532.86/42,776.09 = 11,905.28/x
  3. Step 3: Cross multiply
    28,532.86x = 42,776.09 × 11,905.28
  4. Step 4: Simplify right side
    28,532.86x = 509,261,251.58
  5. Step 5: Solve for x
    x = 509,261,251.58/28,532.86
  6. Step 6: Final answer
    x = 17,848.24

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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.