Home / 19,828.74-29,747.16-6,690.30

Finding the Fourth Proportional to 19,828.74, 29,747.16 and 6,690.30

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Solution

The fourth proportional to 19,828.74, 29,747.16 and 6,690.30 is: 10,036.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.74 : 29,747.16 = 6,690.30 : x
  2. Step 2: Convert to fraction form
    19,828.74/29,747.16 = 6,690.30/x
  3. Step 3: Cross multiply
    19,828.74x = 29,747.16 × 6,690.30
  4. Step 4: Simplify right side
    19,828.74x = 199,017,424.55
  5. Step 5: Solve for x
    x = 199,017,424.55/19,828.74
  6. Step 6: Final answer
    x = 10,036.82

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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.