Home / 28,328.66-42,498.06-11,679.44

Finding the Fourth Proportional to 28,328.66, 42,498.06 and 11,679.44

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Solution

The fourth proportional to 28,328.66, 42,498.06 and 11,679.44 is: 17,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.66 : 42,498.06 = 11,679.44 : x
  2. Step 2: Convert to fraction form
    28,328.66/42,498.06 = 11,679.44/x
  3. Step 3: Cross multiply
    28,328.66x = 42,498.06 × 11,679.44
  4. Step 4: Simplify right side
    28,328.66x = 496,353,541.89
  5. Step 5: Solve for x
    x = 496,353,541.89/28,328.66
  6. Step 6: Final answer
    x = 17,521.25

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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.