Home / 42,879.06-64,324.81-13,299.27

Finding the Fourth Proportional to 42,879.06, 64,324.81 and 13,299.27

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Solution

The fourth proportional to 42,879.06, 64,324.81 and 13,299.27 is: 19,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,879.06 : 64,324.81 = 13,299.27 : x
  2. Step 2: Convert to fraction form
    42,879.06/64,324.81 = 13,299.27/x
  3. Step 3: Cross multiply
    42,879.06x = 64,324.81 × 13,299.27
  4. Step 4: Simplify right side
    42,879.06x = 855,473,015.89
  5. Step 5: Solve for x
    x = 855,473,015.89/42,879.06
  6. Step 6: Final answer
    x = 19,950.84

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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.