Home / 42,562.92-63,844.21-12,980.67

Finding the Fourth Proportional to 42,562.92, 63,844.21 and 12,980.67

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Solution

The fourth proportional to 42,562.92, 63,844.21 and 12,980.67 is: 19,470.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,562.92 : 63,844.21 = 12,980.67 : x
  2. Step 2: Convert to fraction form
    42,562.92/63,844.21 = 12,980.67/x
  3. Step 3: Cross multiply
    42,562.92x = 63,844.21 × 12,980.67
  4. Step 4: Simplify right side
    42,562.92x = 828,740,621.42
  5. Step 5: Solve for x
    x = 828,740,621.42/42,562.92
  6. Step 6: Final answer
    x = 19,470.95

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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.