Home / 21,748.28-32,638.44-9,915.44

Finding the Fourth Proportional to 21,748.28, 32,638.44 and 9,915.44

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Solution

The fourth proportional to 21,748.28, 32,638.44 and 9,915.44 is: 14,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748.28 : 32,638.44 = 9,915.44 : x
  2. Step 2: Convert to fraction form
    21,748.28/32,638.44 = 9,915.44/x
  3. Step 3: Cross multiply
    21,748.28x = 32,638.44 × 9,915.44
  4. Step 4: Simplify right side
    21,748.28x = 323,624,493.51
  5. Step 5: Solve for x
    x = 323,624,493.51/21,748.28
  6. Step 6: Final answer
    x = 14,880.46

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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.