Home / 46,418.64-69,628.34-13,139.80

Finding the Fourth Proportional to 46,418.64, 69,628.34 and 13,139.80

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Solution

The fourth proportional to 46,418.64, 69,628.34 and 13,139.80 is: 19,709.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,418.64 : 69,628.34 = 13,139.80 : x
  2. Step 2: Convert to fraction form
    46,418.64/69,628.34 = 13,139.80/x
  3. Step 3: Cross multiply
    46,418.64x = 69,628.34 × 13,139.80
  4. Step 4: Simplify right side
    46,418.64x = 914,902,461.93
  5. Step 5: Solve for x
    x = 914,902,461.93/46,418.64
  6. Step 6: Final answer
    x = 19,709.81

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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.