Home / 28,847.30-43,307.40-15,530.90

Finding the Fourth Proportional to 28,847.30, 43,307.40 and 15,530.90

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Solution

The fourth proportional to 28,847.30, 43,307.40 and 15,530.90 is: 23,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.30 : 43,307.40 = 15,530.90 : x
  2. Step 2: Convert to fraction form
    28,847.30/43,307.40 = 15,530.90/x
  3. Step 3: Cross multiply
    28,847.30x = 43,307.40 × 15,530.90
  4. Step 4: Simplify right side
    28,847.30x = 672,602,898.66
  5. Step 5: Solve for x
    x = 672,602,898.66/28,847.30
  6. Step 6: Final answer
    x = 23,315.97

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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.