Home / 19,571.96-29,345.46-12,900.76

Finding the Fourth Proportional to 19,571.96, 29,345.46 and 12,900.76

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Solution

The fourth proportional to 19,571.96, 29,345.46 and 12,900.76 is: 19,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.96 : 29,345.46 = 12,900.76 : x
  2. Step 2: Convert to fraction form
    19,571.96/29,345.46 = 12,900.76/x
  3. Step 3: Cross multiply
    19,571.96x = 29,345.46 × 12,900.76
  4. Step 4: Simplify right side
    19,571.96x = 378,578,614.81
  5. Step 5: Solve for x
    x = 378,578,614.81/19,571.96
  6. Step 6: Final answer
    x = 19,342.91

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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.