Home / 19,663.08-29,479.80-11,870.04

Finding the Fourth Proportional to 19,663.08, 29,479.80 and 11,870.04

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Solution

The fourth proportional to 19,663.08, 29,479.80 and 11,870.04 is: 17,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.08 : 29,479.80 = 11,870.04 : x
  2. Step 2: Convert to fraction form
    19,663.08/29,479.80 = 11,870.04/x
  3. Step 3: Cross multiply
    19,663.08x = 29,479.80 × 11,870.04
  4. Step 4: Simplify right side
    19,663.08x = 349,926,405.19
  5. Step 5: Solve for x
    x = 349,926,405.19/19,663.08
  6. Step 6: Final answer
    x = 17,796.11

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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.