Home / 21,915.48-32,872.92-14,878.08

Finding the Fourth Proportional to 21,915.48, 32,872.92 and 14,878.08

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Solution

The fourth proportional to 21,915.48, 32,872.92 and 14,878.08 is: 22,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.48 : 32,872.92 = 14,878.08 : x
  2. Step 2: Convert to fraction form
    21,915.48/32,872.92 = 14,878.08/x
  3. Step 3: Cross multiply
    21,915.48x = 32,872.92 × 14,878.08
  4. Step 4: Simplify right side
    21,915.48x = 489,085,933.59
  5. Step 5: Solve for x
    x = 489,085,933.59/21,915.48
  6. Step 6: Final answer
    x = 22,316.92

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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.