Home / 21,623.16-32,439.66-9,144.24

Finding the Fourth Proportional to 21,623.16, 32,439.66 and 9,144.24

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Solution

The fourth proportional to 21,623.16, 32,439.66 and 9,144.24 is: 13,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.16 : 32,439.66 = 9,144.24 : x
  2. Step 2: Convert to fraction form
    21,623.16/32,439.66 = 9,144.24/x
  3. Step 3: Cross multiply
    21,623.16x = 32,439.66 × 9,144.24
  4. Step 4: Simplify right side
    21,623.16x = 296,636,036.56
  5. Step 5: Solve for x
    x = 296,636,036.56/21,623.16
  6. Step 6: Final answer
    x = 13,718.44

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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.