Home / 19,967.30-29,948.63-5,175.06

Finding the Fourth Proportional to 19,967.30, 29,948.63 and 5,175.06

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Solution

The fourth proportional to 19,967.30, 29,948.63 and 5,175.06 is: 7,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.30 : 29,948.63 = 5,175.06 : x
  2. Step 2: Convert to fraction form
    19,967.30/29,948.63 = 5,175.06/x
  3. Step 3: Cross multiply
    19,967.30x = 29,948.63 × 5,175.06
  4. Step 4: Simplify right side
    19,967.30x = 154,985,818.99
  5. Step 5: Solve for x
    x = 154,985,818.99/19,967.30
  6. Step 6: Final answer
    x = 7,761.98

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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.