Home / 42,139.70-63,218.96-15,844.67

Finding the Fourth Proportional to 42,139.70, 63,218.96 and 15,844.67

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Solution

The fourth proportional to 42,139.70, 63,218.96 and 15,844.67 is: 23,770.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,139.70 : 63,218.96 = 15,844.67 : x
  2. Step 2: Convert to fraction form
    42,139.70/63,218.96 = 15,844.67/x
  3. Step 3: Cross multiply
    42,139.70x = 63,218.96 × 15,844.67
  4. Step 4: Simplify right side
    42,139.70x = 1,001,683,558.94
  5. Step 5: Solve for x
    x = 1,001,683,558.94/42,139.70
  6. Step 6: Final answer
    x = 23,770.54

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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.