Home / 41,018.81-61,529.54-12,939.12

Finding the Fourth Proportional to 41,018.81, 61,529.54 and 12,939.12

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Solution

The fourth proportional to 41,018.81, 61,529.54 and 12,939.12 is: 19,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,018.81 : 61,529.54 = 12,939.12 : x
  2. Step 2: Convert to fraction form
    41,018.81/61,529.54 = 12,939.12/x
  3. Step 3: Cross multiply
    41,018.81x = 61,529.54 × 12,939.12
  4. Step 4: Simplify right side
    41,018.81x = 796,138,036.91
  5. Step 5: Solve for x
    x = 796,138,036.91/41,018.81
  6. Step 6: Final answer
    x = 19,409.10

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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.