Home / 21,710.40-32,569.20-8,563.20

Finding the Fourth Proportional to 21,710.40, 32,569.20 and 8,563.20

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Solution

The fourth proportional to 21,710.40, 32,569.20 and 8,563.20 is: 12,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.40 : 32,569.20 = 8,563.20 : x
  2. Step 2: Convert to fraction form
    21,710.40/32,569.20 = 8,563.20/x
  3. Step 3: Cross multiply
    21,710.40x = 32,569.20 × 8,563.20
  4. Step 4: Simplify right side
    21,710.40x = 278,896,573.44
  5. Step 5: Solve for x
    x = 278,896,573.44/21,710.40
  6. Step 6: Final answer
    x = 12,846.22

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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.