Home / 21,579.69-32,377.32-7,541.79

Finding the Fourth Proportional to 21,579.69, 32,377.32 and 7,541.79

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Solution

The fourth proportional to 21,579.69, 32,377.32 and 7,541.79 is: 11,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.69 : 32,377.32 = 7,541.79 : x
  2. Step 2: Convert to fraction form
    21,579.69/32,377.32 = 7,541.79/x
  3. Step 3: Cross multiply
    21,579.69x = 32,377.32 × 7,541.79
  4. Step 4: Simplify right side
    21,579.69x = 244,182,948.20
  5. Step 5: Solve for x
    x = 244,182,948.20/21,579.69
  6. Step 6: Final answer
    x = 11,315.41

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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.