Home / 21,358.18-29,466.48-13,397.50

Finding the Fourth Proportional to 21,358.18, 29,466.48 and 13,397.50

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Solution

The fourth proportional to 21,358.18, 29,466.48 and 13,397.50 is: 18,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.18 : 29,466.48 = 13,397.50 : x
  2. Step 2: Convert to fraction form
    21,358.18/29,466.48 = 13,397.50/x
  3. Step 3: Cross multiply
    21,358.18x = 29,466.48 × 13,397.50
  4. Step 4: Simplify right side
    21,358.18x = 394,777,165.80
  5. Step 5: Solve for x
    x = 394,777,165.80/21,358.18
  6. Step 6: Final answer
    x = 18,483.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.