Home / 42,579.46-63,878.45-12,996.49

Finding the Fourth Proportional to 42,579.46, 63,878.45 and 12,996.49

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Solution

The fourth proportional to 42,579.46, 63,878.45 and 12,996.49 is: 19,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,579.46 : 63,878.45 = 12,996.49 : x
  2. Step 2: Convert to fraction form
    42,579.46/63,878.45 = 12,996.49/x
  3. Step 3: Cross multiply
    42,579.46x = 63,878.45 × 12,996.49
  4. Step 4: Simplify right side
    42,579.46x = 830,195,636.64
  5. Step 5: Solve for x
    x = 830,195,636.64/42,579.46
  6. Step 6: Final answer
    x = 19,497.56

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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.