Home / 19,575.12-29,353.86-11,681.28

Finding the Fourth Proportional to 19,575.12, 29,353.86 and 11,681.28

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Solution

The fourth proportional to 19,575.12, 29,353.86 and 11,681.28 is: 17,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,575.12 : 29,353.86 = 11,681.28 : x
  2. Step 2: Convert to fraction form
    19,575.12/29,353.86 = 11,681.28/x
  3. Step 3: Cross multiply
    19,575.12x = 29,353.86 × 11,681.28
  4. Step 4: Simplify right side
    19,575.12x = 342,890,657.74
  5. Step 5: Solve for x
    x = 342,890,657.74/19,575.12
  6. Step 6: Final answer
    x = 17,516.66

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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.