Home / 19,530.24-29,301.44-5,679.28

Finding the Fourth Proportional to 19,530.24, 29,301.44 and 5,679.28

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Solution

The fourth proportional to 19,530.24, 29,301.44 and 5,679.28 is: 8,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.24 : 29,301.44 = 5,679.28 : x
  2. Step 2: Convert to fraction form
    19,530.24/29,301.44 = 5,679.28/x
  3. Step 3: Cross multiply
    19,530.24x = 29,301.44 × 5,679.28
  4. Step 4: Simplify right side
    19,530.24x = 166,411,082.16
  5. Step 5: Solve for x
    x = 166,411,082.16/19,530.24
  6. Step 6: Final answer
    x = 8,520.69

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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.