Home / 42,227.78-63,334.38-12,637.67

Finding the Fourth Proportional to 42,227.78, 63,334.38 and 12,637.67

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Solution

The fourth proportional to 42,227.78, 63,334.38 and 12,637.67 is: 18,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,227.78 : 63,334.38 = 12,637.67 : x
  2. Step 2: Convert to fraction form
    42,227.78/63,334.38 = 12,637.67/x
  3. Step 3: Cross multiply
    42,227.78x = 63,334.38 × 12,637.67
  4. Step 4: Simplify right side
    42,227.78x = 800,398,994.09
  5. Step 5: Solve for x
    x = 800,398,994.09/42,227.78
  6. Step 6: Final answer
    x = 18,954.32

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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.