Home / 42,280.68-63,415.98-11,118.36

Finding the Fourth Proportional to 42,280.68, 63,415.98 and 11,118.36

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Solution

The fourth proportional to 42,280.68, 63,415.98 and 11,118.36 is: 16,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,280.68 : 63,415.98 = 11,118.36 : x
  2. Step 2: Convert to fraction form
    42,280.68/63,415.98 = 11,118.36/x
  3. Step 3: Cross multiply
    42,280.68x = 63,415.98 × 11,118.36
  4. Step 4: Simplify right side
    42,280.68x = 705,081,695.39
  5. Step 5: Solve for x
    x = 705,081,695.39/42,280.68
  6. Step 6: Final answer
    x = 16,676.21

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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.