Home / 42,368.58-63,553.30-12,786.66

Finding the Fourth Proportional to 42,368.58, 63,553.30 and 12,786.66

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Solution

The fourth proportional to 42,368.58, 63,553.30 and 12,786.66 is: 19,180.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.58 : 63,553.30 = 12,786.66 : x
  2. Step 2: Convert to fraction form
    42,368.58/63,553.30 = 12,786.66/x
  3. Step 3: Cross multiply
    42,368.58x = 63,553.30 × 12,786.66
  4. Step 4: Simplify right side
    42,368.58x = 812,634,438.98
  5. Step 5: Solve for x
    x = 812,634,438.98/42,368.58
  6. Step 6: Final answer
    x = 19,180.12

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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.