Home / 28,931.42-43,388.30-10,207.08

Finding the Fourth Proportional to 28,931.42, 43,388.30 and 10,207.08

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Solution

The fourth proportional to 28,931.42, 43,388.30 and 10,207.08 is: 15,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.42 : 43,388.30 = 10,207.08 : x
  2. Step 2: Convert to fraction form
    28,931.42/43,388.30 = 10,207.08/x
  3. Step 3: Cross multiply
    28,931.42x = 43,388.30 × 10,207.08
  4. Step 4: Simplify right side
    28,931.42x = 442,867,942.88
  5. Step 5: Solve for x
    x = 442,867,942.88/28,931.42
  6. Step 6: Final answer
    x = 15,307.51

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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.