Home / 19,939.14-29,875.90-15,805.70

Finding the Fourth Proportional to 19,939.14, 29,875.90 and 15,805.70

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Solution

The fourth proportional to 19,939.14, 29,875.90 and 15,805.70 is: 23,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.14 : 29,875.90 = 15,805.70 : x
  2. Step 2: Convert to fraction form
    19,939.14/29,875.90 = 15,805.70/x
  3. Step 3: Cross multiply
    19,939.14x = 29,875.90 × 15,805.70
  4. Step 4: Simplify right side
    19,939.14x = 472,209,512.63
  5. Step 5: Solve for x
    x = 472,209,512.63/19,939.14
  6. Step 6: Final answer
    x = 23,682.54

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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.