Home / 42,206.72-63,319.44-15,911.70

Finding the Fourth Proportional to 42,206.72, 63,319.44 and 15,911.70

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Solution

The fourth proportional to 42,206.72, 63,319.44 and 15,911.70 is: 23,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,206.72 : 63,319.44 = 15,911.70 : x
  2. Step 2: Convert to fraction form
    42,206.72/63,319.44 = 15,911.70/x
  3. Step 3: Cross multiply
    42,206.72x = 63,319.44 × 15,911.70
  4. Step 4: Simplify right side
    42,206.72x = 1,007,519,933.45
  5. Step 5: Solve for x
    x = 1,007,519,933.45/42,206.72
  6. Step 6: Final answer
    x = 23,871.08

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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.