Home / 42,042.45-63,063.39-12,460.44

Finding the Fourth Proportional to 42,042.45, 63,063.39 and 12,460.44

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Solution

The fourth proportional to 42,042.45, 63,063.39 and 12,460.44 is: 18,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,042.45 : 63,063.39 = 12,460.44 : x
  2. Step 2: Convert to fraction form
    42,042.45/63,063.39 = 12,460.44/x
  3. Step 3: Cross multiply
    42,042.45x = 63,063.39 × 12,460.44
  4. Step 4: Simplify right side
    42,042.45x = 785,797,587.29
  5. Step 5: Solve for x
    x = 785,797,587.29/42,042.45
  6. Step 6: Final answer
    x = 18,690.58

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1.5x scale

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.