Home / 21,927.18-32,915.34-8,788.72

Finding the Fourth Proportional to 21,927.18, 32,915.34 and 8,788.72

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Solution

The fourth proportional to 21,927.18, 32,915.34 and 8,788.72 is: 13,192.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.18 : 32,915.34 = 8,788.72 : x
  2. Step 2: Convert to fraction form
    21,927.18/32,915.34 = 8,788.72/x
  3. Step 3: Cross multiply
    21,927.18x = 32,915.34 × 8,788.72
  4. Step 4: Simplify right side
    21,927.18x = 289,283,706.96
  5. Step 5: Solve for x
    x = 289,283,706.96/21,927.18
  6. Step 6: Final answer
    x = 13,192.93

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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.