Home / 28,929-43,398.65-10,219.89

Finding the Fourth Proportional to 28,929, 43,398.65 and 10,219.89

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Solution

The fourth proportional to 28,929, 43,398.65 and 10,219.89 is: 15,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929 : 43,398.65 = 10,219.89 : x
  2. Step 2: Convert to fraction form
    28,929/43,398.65 = 10,219.89/x
  3. Step 3: Cross multiply
    28,929x = 43,398.65 × 10,219.89
  4. Step 4: Simplify right side
    28,929x = 443,529,429.15
  5. Step 5: Solve for x
    x = 443,529,429.15/28,929
  6. Step 6: Final answer
    x = 15,331.65

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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.