Home / 19,731.52-29,584.41-7,877.98

Finding the Fourth Proportional to 19,731.52, 29,584.41 and 7,877.98

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Solution

The fourth proportional to 19,731.52, 29,584.41 and 7,877.98 is: 11,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.52 : 29,584.41 = 7,877.98 : x
  2. Step 2: Convert to fraction form
    19,731.52/29,584.41 = 7,877.98/x
  3. Step 3: Cross multiply
    19,731.52x = 29,584.41 × 7,877.98
  4. Step 4: Simplify right side
    19,731.52x = 233,065,547.41
  5. Step 5: Solve for x
    x = 233,065,547.41/19,731.52
  6. Step 6: Final answer
    x = 11,811.84

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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.