Home / 69,347.16-104,014.08-19,431.72

Finding the Fourth Proportional to 69,347.16, 104,014.08 and 19,431.72

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Solution

The fourth proportional to 69,347.16, 104,014.08 and 19,431.72 is: 29,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,347.16 : 104,014.08 = 19,431.72 : x
  2. Step 2: Convert to fraction form
    69,347.16/104,014.08 = 19,431.72/x
  3. Step 3: Cross multiply
    69,347.16x = 104,014.08 × 19,431.72
  4. Step 4: Simplify right side
    69,347.16x = 2,021,172,478.62
  5. Step 5: Solve for x
    x = 2,021,172,478.62/69,347.16
  6. Step 6: Final answer
    x = 29,145.71

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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.