Home / 42,552.82-63,829.14-12,970.90

Finding the Fourth Proportional to 42,552.82, 63,829.14 and 12,970.90

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Solution

The fourth proportional to 42,552.82, 63,829.14 and 12,970.90 is: 19,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,552.82 : 63,829.14 = 12,970.90 : x
  2. Step 2: Convert to fraction form
    42,552.82/63,829.14 = 12,970.90/x
  3. Step 3: Cross multiply
    42,552.82x = 63,829.14 × 12,970.90
  4. Step 4: Simplify right side
    42,552.82x = 827,921,392.03
  5. Step 5: Solve for x
    x = 827,921,392.03/42,552.82
  6. Step 6: Final answer
    x = 19,456.32

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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.