Home / 20,252.76-30,398.60-9,871.80

Finding the Fourth Proportional to 20,252.76, 30,398.60 and 9,871.80

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Solution

The fourth proportional to 20,252.76, 30,398.60 and 9,871.80 is: 14,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.76 : 30,398.60 = 9,871.80 : x
  2. Step 2: Convert to fraction form
    20,252.76/30,398.60 = 9,871.80/x
  3. Step 3: Cross multiply
    20,252.76x = 30,398.60 × 9,871.80
  4. Step 4: Simplify right side
    20,252.76x = 300,088,899.48
  5. Step 5: Solve for x
    x = 300,088,899.48/20,252.76
  6. Step 6: Final answer
    x = 14,817.19

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1.5x scale

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.