Home / 28,489.32-42,726.06-11,853.72

Finding the Fourth Proportional to 28,489.32, 42,726.06 and 11,853.72

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Solution

The fourth proportional to 28,489.32, 42,726.06 and 11,853.72 is: 17,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.32 : 42,726.06 = 11,853.72 : x
  2. Step 2: Convert to fraction form
    28,489.32/42,726.06 = 11,853.72/x
  3. Step 3: Cross multiply
    28,489.32x = 42,726.06 × 11,853.72
  4. Step 4: Simplify right side
    28,489.32x = 506,462,751.94
  5. Step 5: Solve for x
    x = 506,462,751.94/28,489.32
  6. Step 6: Final answer
    x = 17,777.28

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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.