Home / 21,435.34-32,153.01-8,948.55

Finding the Fourth Proportional to 21,435.34, 32,153.01 and 8,948.55

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Solution

The fourth proportional to 21,435.34, 32,153.01 and 8,948.55 is: 13,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.34 : 32,153.01 = 8,948.55 : x
  2. Step 2: Convert to fraction form
    21,435.34/32,153.01 = 8,948.55/x
  3. Step 3: Cross multiply
    21,435.34x = 32,153.01 × 8,948.55
  4. Step 4: Simplify right side
    21,435.34x = 287,722,817.64
  5. Step 5: Solve for x
    x = 287,722,817.64/21,435.34
  6. Step 6: Final answer
    x = 13,422.83

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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.