Home / 30,557.07-45,848.68-12,791.88

Finding the Fourth Proportional to 30,557.07, 45,848.68 and 12,791.88

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Solution

The fourth proportional to 30,557.07, 45,848.68 and 12,791.88 is: 19,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.07 : 45,848.68 = 12,791.88 : x
  2. Step 2: Convert to fraction form
    30,557.07/45,848.68 = 12,791.88/x
  3. Step 3: Cross multiply
    30,557.07x = 45,848.68 × 12,791.88
  4. Step 4: Simplify right side
    30,557.07x = 586,490,780.74
  5. Step 5: Solve for x
    x = 586,490,780.74/30,557.07
  6. Step 6: Final answer
    x = 19,193.29

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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.