Home / 20,114.51-27,753.98-12,157.18

Finding the Fourth Proportional to 20,114.51, 27,753.98 and 12,157.18

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Solution

The fourth proportional to 20,114.51, 27,753.98 and 12,157.18 is: 16,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.51 : 27,753.98 = 12,157.18 : x
  2. Step 2: Convert to fraction form
    20,114.51/27,753.98 = 12,157.18/x
  3. Step 3: Cross multiply
    20,114.51x = 27,753.98 × 12,157.18
  4. Step 4: Simplify right side
    20,114.51x = 337,410,000.41
  5. Step 5: Solve for x
    x = 337,410,000.41/20,114.51
  6. Step 6: Final answer
    x = 16,774.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.