Home / 18,827.02-28,240.74-5,679.51

Finding the Fourth Proportional to 18,827.02, 28,240.74 and 5,679.51

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Solution

The fourth proportional to 18,827.02, 28,240.74 and 5,679.51 is: 8,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.02 : 28,240.74 = 5,679.51 : x
  2. Step 2: Convert to fraction form
    18,827.02/28,240.74 = 5,679.51/x
  3. Step 3: Cross multiply
    18,827.02x = 28,240.74 × 5,679.51
  4. Step 4: Simplify right side
    18,827.02x = 160,393,473.34
  5. Step 5: Solve for x
    x = 160,393,473.34/18,827.02
  6. Step 6: Final answer
    x = 8,519.32

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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.