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Finding the Fourth Proportional to 31,889.88, 48,047.58 and 28,891.67

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Solution

The fourth proportional to 31,889.88, 48,047.58 and 28,891.67 is: 43,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889.88 : 48,047.58 = 28,891.67 : x
  2. Step 2: Convert to fraction form
    31,889.88/48,047.58 = 28,891.67/x
  3. Step 3: Cross multiply
    31,889.88x = 48,047.58 × 28,891.67
  4. Step 4: Simplify right side
    31,889.88x = 1,388,174,585.42
  5. Step 5: Solve for x
    x = 1,388,174,585.42/31,889.88
  6. Step 6: Final answer
    x = 43,530.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.