Home / 40,056.99-55,279-22,153.20

Finding the Fourth Proportional to 40,056.99, 55,279 and 22,153.20

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Solution

The fourth proportional to 40,056.99, 55,279 and 22,153.20 is: 30,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,056.99 : 55,279 = 22,153.20 : x
  2. Step 2: Convert to fraction form
    40,056.99/55,279 = 22,153.20/x
  3. Step 3: Cross multiply
    40,056.99x = 55,279 × 22,153.20
  4. Step 4: Simplify right side
    40,056.99x = 1,224,606,742.80
  5. Step 5: Solve for x
    x = 1,224,606,742.80/40,056.99
  6. Step 6: Final answer
    x = 30,571.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.