Home / 21,381.92-32,079.38-15,153.98

Finding the Fourth Proportional to 21,381.92, 32,079.38 and 15,153.98

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Solution

The fourth proportional to 21,381.92, 32,079.38 and 15,153.98 is: 22,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381.92 : 32,079.38 = 15,153.98 : x
  2. Step 2: Convert to fraction form
    21,381.92/32,079.38 = 15,153.98/x
  3. Step 3: Cross multiply
    21,381.92x = 32,079.38 × 15,153.98
  4. Step 4: Simplify right side
    21,381.92x = 486,130,282.93
  5. Step 5: Solve for x
    x = 486,130,282.93/21,381.92
  6. Step 6: Final answer
    x = 22,735.58

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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.