Home / 46,138.23-69,218.15-19,828.35

Finding the Fourth Proportional to 46,138.23, 69,218.15 and 19,828.35

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Solution

The fourth proportional to 46,138.23, 69,218.15 and 19,828.35 is: 29,747.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,138.23 : 69,218.15 = 19,828.35 : x
  2. Step 2: Convert to fraction form
    46,138.23/69,218.15 = 19,828.35/x
  3. Step 3: Cross multiply
    46,138.23x = 69,218.15 × 19,828.35
  4. Step 4: Simplify right side
    46,138.23x = 1,372,481,605.41
  5. Step 5: Solve for x
    x = 1,372,481,605.41/46,138.23
  6. Step 6: Final answer
    x = 29,747.17

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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.