Home / 43,047.78-64,571.57-11,457.84

Finding the Fourth Proportional to 43,047.78, 64,571.57 and 11,457.84

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Solution

The fourth proportional to 43,047.78, 64,571.57 and 11,457.84 is: 17,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,047.78 : 64,571.57 = 11,457.84 : x
  2. Step 2: Convert to fraction form
    43,047.78/64,571.57 = 11,457.84/x
  3. Step 3: Cross multiply
    43,047.78x = 64,571.57 × 11,457.84
  4. Step 4: Simplify right side
    43,047.78x = 739,850,660.32
  5. Step 5: Solve for x
    x = 739,850,660.32/43,047.78
  6. Step 6: Final answer
    x = 17,186.73

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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.