Home / 20,741.16-31,099.86-14,175.48

Finding the Fourth Proportional to 20,741.16, 31,099.86 and 14,175.48

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Solution

The fourth proportional to 20,741.16, 31,099.86 and 14,175.48 is: 21,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.16 : 31,099.86 = 14,175.48 : x
  2. Step 2: Convert to fraction form
    20,741.16/31,099.86 = 14,175.48/x
  3. Step 3: Cross multiply
    20,741.16x = 31,099.86 × 14,175.48
  4. Step 4: Simplify right side
    20,741.16x = 440,855,443.43
  5. Step 5: Solve for x
    x = 440,855,443.43/20,741.16
  6. Step 6: Final answer
    x = 21,255.10

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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.