Home / 30,872.18-46,299.08-13,102.58

Finding the Fourth Proportional to 30,872.18, 46,299.08 and 13,102.58

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Solution

The fourth proportional to 30,872.18, 46,299.08 and 13,102.58 is: 19,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.18 : 46,299.08 = 13,102.58 : x
  2. Step 2: Convert to fraction form
    30,872.18/46,299.08 = 13,102.58/x
  3. Step 3: Cross multiply
    30,872.18x = 46,299.08 × 13,102.58
  4. Step 4: Simplify right side
    30,872.18x = 606,637,399.63
  5. Step 5: Solve for x
    x = 606,637,399.63/30,872.18
  6. Step 6: Final answer
    x = 19,649.97

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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.