Home / 21,435.48-32,153.22-11,579.40

Finding the Fourth Proportional to 21,435.48, 32,153.22 and 11,579.40

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Solution

The fourth proportional to 21,435.48, 32,153.22 and 11,579.40 is: 17,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.48 : 32,153.22 = 11,579.40 : x
  2. Step 2: Convert to fraction form
    21,435.48/32,153.22 = 11,579.40/x
  3. Step 3: Cross multiply
    21,435.48x = 32,153.22 × 11,579.40
  4. Step 4: Simplify right side
    21,435.48x = 372,314,995.67
  5. Step 5: Solve for x
    x = 372,314,995.67/21,435.48
  6. Step 6: Final answer
    x = 17,369.10

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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.