Home / 20,827.53-28,744.74-11,754.72

Finding the Fourth Proportional to 20,827.53, 28,744.74 and 11,754.72

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Solution

The fourth proportional to 20,827.53, 28,744.74 and 11,754.72 is: 16,223.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.53 : 28,744.74 = 11,754.72 : x
  2. Step 2: Convert to fraction form
    20,827.53/28,744.74 = 11,754.72/x
  3. Step 3: Cross multiply
    20,827.53x = 28,744.74 × 11,754.72
  4. Step 4: Simplify right side
    20,827.53x = 337,886,370.17
  5. Step 5: Solve for x
    x = 337,886,370.17/20,827.53
  6. Step 6: Final answer
    x = 16,223.06

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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.