Home / 42,260.46-63,401.22-12,678.88

Finding the Fourth Proportional to 42,260.46, 63,401.22 and 12,678.88

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Solution

The fourth proportional to 42,260.46, 63,401.22 and 12,678.88 is: 19,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,260.46 : 63,401.22 = 12,678.88 : x
  2. Step 2: Convert to fraction form
    42,260.46/63,401.22 = 12,678.88/x
  3. Step 3: Cross multiply
    42,260.46x = 63,401.22 × 12,678.88
  4. Step 4: Simplify right side
    42,260.46x = 803,856,460.23
  5. Step 5: Solve for x
    x = 803,856,460.23/42,260.46
  6. Step 6: Final answer
    x = 19,021.48

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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.