Home / 21,915.12-32,896.10-9,441.34

Finding the Fourth Proportional to 21,915.12, 32,896.10 and 9,441.34

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Solution

The fourth proportional to 21,915.12, 32,896.10 and 9,441.34 is: 14,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,915.12 : 32,896.10 = 9,441.34 : x
  2. Step 2: Convert to fraction form
    21,915.12/32,896.10 = 9,441.34/x
  3. Step 3: Cross multiply
    21,915.12x = 32,896.10 × 9,441.34
  4. Step 4: Simplify right side
    21,915.12x = 310,583,264.77
  5. Step 5: Solve for x
    x = 310,583,264.77/21,915.12
  6. Step 6: Final answer
    x = 14,172.10

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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.