Home / 20,876.02-31,297.55-10,349.66

Finding the Fourth Proportional to 20,876.02, 31,297.55 and 10,349.66

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Solution

The fourth proportional to 20,876.02, 31,297.55 and 10,349.66 is: 15,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.02 : 31,297.55 = 10,349.66 : x
  2. Step 2: Convert to fraction form
    20,876.02/31,297.55 = 10,349.66/x
  3. Step 3: Cross multiply
    20,876.02x = 31,297.55 × 10,349.66
  4. Step 4: Simplify right side
    20,876.02x = 323,919,001.33
  5. Step 5: Solve for x
    x = 323,919,001.33/20,876.02
  6. Step 6: Final answer
    x = 15,516.32

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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.