Home / 19,905.88-29,766.54-15,412.61

Finding the Fourth Proportional to 19,905.88, 29,766.54 and 15,412.61

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Solution

The fourth proportional to 19,905.88, 29,766.54 and 15,412.61 is: 23,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.88 : 29,766.54 = 15,412.61 : x
  2. Step 2: Convert to fraction form
    19,905.88/29,766.54 = 15,412.61/x
  3. Step 3: Cross multiply
    19,905.88x = 29,766.54 × 15,412.61
  4. Step 4: Simplify right side
    19,905.88x = 458,779,995.01
  5. Step 5: Solve for x
    x = 458,779,995.01/19,905.88
  6. Step 6: Final answer
    x = 23,047.47

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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.