Home / 20,113.30-27,764.74-12,153.53

Finding the Fourth Proportional to 20,113.30, 27,764.74 and 12,153.53

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Solution

The fourth proportional to 20,113.30, 27,764.74 and 12,153.53 is: 16,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.30 : 27,764.74 = 12,153.53 : x
  2. Step 2: Convert to fraction form
    20,113.30/27,764.74 = 12,153.53/x
  3. Step 3: Cross multiply
    20,113.30x = 27,764.74 × 12,153.53
  4. Step 4: Simplify right side
    20,113.30x = 337,439,600.53
  5. Step 5: Solve for x
    x = 337,439,600.53/20,113.30
  6. Step 6: Final answer
    x = 16,776.94

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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.