Home / 31,434.06-47,157.66-28,297.20

Finding the Fourth Proportional to 31,434.06, 47,157.66 and 28,297.20

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Solution

The fourth proportional to 31,434.06, 47,157.66 and 28,297.20 is: 42,451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.06 : 47,157.66 = 28,297.20 : x
  2. Step 2: Convert to fraction form
    31,434.06/47,157.66 = 28,297.20/x
  3. Step 3: Cross multiply
    31,434.06x = 47,157.66 × 28,297.20
  4. Step 4: Simplify right side
    31,434.06x = 1,334,429,736.55
  5. Step 5: Solve for x
    x = 1,334,429,736.55/31,434.06
  6. Step 6: Final answer
    x = 42,451.71

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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.