Home / 21,915.07-32,874.42-9,435.40

Finding the Fourth Proportional to 21,915.07, 32,874.42 and 9,435.40

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Solution

The fourth proportional to 21,915.07, 32,874.42 and 9,435.40 is: 14,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.07 : 32,874.42 = 9,435.40 : x
  2. Step 2: Convert to fraction form
    21,915.07/32,874.42 = 9,435.40/x
  3. Step 3: Cross multiply
    21,915.07x = 32,874.42 × 9,435.40
  4. Step 4: Simplify right side
    21,915.07x = 310,183,302.47
  5. Step 5: Solve for x
    x = 310,183,302.47/21,915.07
  6. Step 6: Final answer
    x = 14,153.88

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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.