Home / 21,435.26-32,147.70-8,948.52

Finding the Fourth Proportional to 21,435.26, 32,147.70 and 8,948.52

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Solution

The fourth proportional to 21,435.26, 32,147.70 and 8,948.52 is: 13,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.26 : 32,147.70 = 8,948.52 : x
  2. Step 2: Convert to fraction form
    21,435.26/32,147.70 = 8,948.52/x
  3. Step 3: Cross multiply
    21,435.26x = 32,147.70 × 8,948.52
  4. Step 4: Simplify right side
    21,435.26x = 287,674,336.40
  5. Step 5: Solve for x
    x = 287,674,336.40/21,435.26
  6. Step 6: Final answer
    x = 13,420.62

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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.