Home / 42,246.48-63,344.08-21,162

Finding the Fourth Proportional to 42,246.48, 63,344.08 and 21,162

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Solution

The fourth proportional to 42,246.48, 63,344.08 and 21,162 is: 31,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,246.48 : 63,344.08 = 21,162 : x
  2. Step 2: Convert to fraction form
    42,246.48/63,344.08 = 21,162/x
  3. Step 3: Cross multiply
    42,246.48x = 63,344.08 × 21,162
  4. Step 4: Simplify right side
    42,246.48x = 1,340,487,420.96
  5. Step 5: Solve for x
    x = 1,340,487,420.96/42,246.48
  6. Step 6: Final answer
    x = 31,730.16

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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.