Home / 30,646.20-42,277.86-19,307.82

Finding the Fourth Proportional to 30,646.20, 42,277.86 and 19,307.82

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Solution

The fourth proportional to 30,646.20, 42,277.86 and 19,307.82 is: 26,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646.20 : 42,277.86 = 19,307.82 : x
  2. Step 2: Convert to fraction form
    30,646.20/42,277.86 = 19,307.82/x
  3. Step 3: Cross multiply
    30,646.20x = 42,277.86 × 19,307.82
  4. Step 4: Simplify right side
    30,646.20x = 816,293,310.87
  5. Step 5: Solve for x
    x = 816,293,310.87/30,646.20
  6. Step 6: Final answer
    x = 26,636.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.