Home / 21,579.48-32,369.46-9,728.76

Finding the Fourth Proportional to 21,579.48, 32,369.46 and 9,728.76

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Solution

The fourth proportional to 21,579.48, 32,369.46 and 9,728.76 is: 14,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.48 : 32,369.46 = 9,728.76 : x
  2. Step 2: Convert to fraction form
    21,579.48/32,369.46 = 9,728.76/x
  3. Step 3: Cross multiply
    21,579.48x = 32,369.46 × 9,728.76
  4. Step 4: Simplify right side
    21,579.48x = 314,914,707.67
  5. Step 5: Solve for x
    x = 314,914,707.67/21,579.48
  6. Step 6: Final answer
    x = 14,593.25

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1.5x scale

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.