Home / 30,918.76-46,384.40-13,149.38

Finding the Fourth Proportional to 30,918.76, 46,384.40 and 13,149.38

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Solution

The fourth proportional to 30,918.76, 46,384.40 and 13,149.38 is: 19,726.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.76 : 46,384.40 = 13,149.38 : x
  2. Step 2: Convert to fraction form
    30,918.76/46,384.40 = 13,149.38/x
  3. Step 3: Cross multiply
    30,918.76x = 46,384.40 × 13,149.38
  4. Step 4: Simplify right side
    30,918.76x = 609,926,101.67
  5. Step 5: Solve for x
    x = 609,926,101.67/30,918.76
  6. Step 6: Final answer
    x = 19,726.73

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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.