Home / 39,877.98-59,853.96-20,170.50

Finding the Fourth Proportional to 39,877.98, 59,853.96 and 20,170.50

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Solution

The fourth proportional to 39,877.98, 59,853.96 and 20,170.50 is: 30,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,877.98 : 59,853.96 = 20,170.50 : x
  2. Step 2: Convert to fraction form
    39,877.98/59,853.96 = 20,170.50/x
  3. Step 3: Cross multiply
    39,877.98x = 59,853.96 × 20,170.50
  4. Step 4: Simplify right side
    39,877.98x = 1,207,284,300.18
  5. Step 5: Solve for x
    x = 1,207,284,300.18/39,877.98
  6. Step 6: Final answer
    x = 30,274.46

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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.