Home / 42,204.78-63,317.16-12,622.23

Finding the Fourth Proportional to 42,204.78, 63,317.16 and 12,622.23

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Solution

The fourth proportional to 42,204.78, 63,317.16 and 12,622.23 is: 18,936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,204.78 : 63,317.16 = 12,622.23 : x
  2. Step 2: Convert to fraction form
    42,204.78/63,317.16 = 12,622.23/x
  3. Step 3: Cross multiply
    42,204.78x = 63,317.16 × 12,622.23
  4. Step 4: Simplify right side
    42,204.78x = 799,203,756.47
  5. Step 5: Solve for x
    x = 799,203,756.47/42,204.78
  6. Step 6: Final answer
    x = 18,936.33

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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.