Home / 42,415.18-63,625.84-12,835.35

Finding the Fourth Proportional to 42,415.18, 63,625.84 and 12,835.35

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Solution

The fourth proportional to 42,415.18, 63,625.84 and 12,835.35 is: 19,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,415.18 : 63,625.84 = 12,835.35 : x
  2. Step 2: Convert to fraction form
    42,415.18/63,625.84 = 12,835.35/x
  3. Step 3: Cross multiply
    42,415.18x = 63,625.84 × 12,835.35
  4. Step 4: Simplify right side
    42,415.18x = 816,659,925.44
  5. Step 5: Solve for x
    x = 816,659,925.44/42,415.18
  6. Step 6: Final answer
    x = 19,253.95

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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.