Home / 42,219.18-63,328.77-15,917.78

Finding the Fourth Proportional to 42,219.18, 63,328.77 and 15,917.78

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Solution

The fourth proportional to 42,219.18, 63,328.77 and 15,917.78 is: 23,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219.18 : 63,328.77 = 15,917.78 : x
  2. Step 2: Convert to fraction form
    42,219.18/63,328.77 = 15,917.78/x
  3. Step 3: Cross multiply
    42,219.18x = 63,328.77 × 15,917.78
  4. Step 4: Simplify right side
    42,219.18x = 1,008,053,586.85
  5. Step 5: Solve for x
    x = 1,008,053,586.85/42,219.18
  6. Step 6: Final answer
    x = 23,876.67

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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.