Home / 21,579.48-32,363.19-13,670.24

Finding the Fourth Proportional to 21,579.48, 32,363.19 and 13,670.24

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Solution

The fourth proportional to 21,579.48, 32,363.19 and 13,670.24 is: 20,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.48 : 32,363.19 = 13,670.24 : x
  2. Step 2: Convert to fraction form
    21,579.48/32,363.19 = 13,670.24/x
  3. Step 3: Cross multiply
    21,579.48x = 32,363.19 × 13,670.24
  4. Step 4: Simplify right side
    21,579.48x = 442,412,412.65
  5. Step 5: Solve for x
    x = 442,412,412.65/21,579.48
  6. Step 6: Final answer
    x = 20,501.53

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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.