Home / 21,438.90-32,153.46-9,586.44

Finding the Fourth Proportional to 21,438.90, 32,153.46 and 9,586.44

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Solution

The fourth proportional to 21,438.90, 32,153.46 and 9,586.44 is: 14,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438.90 : 32,153.46 = 9,586.44 : x
  2. Step 2: Convert to fraction form
    21,438.90/32,153.46 = 9,586.44/x
  3. Step 3: Cross multiply
    21,438.90x = 32,153.46 × 9,586.44
  4. Step 4: Simplify right side
    21,438.90x = 308,237,215.08
  5. Step 5: Solve for x
    x = 308,237,215.08/21,438.90
  6. Step 6: Final answer
    x = 14,377.47

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1.5x scale

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.