Home / 20,953.41-28,915.83-11,522.04

Finding the Fourth Proportional to 20,953.41, 28,915.83 and 11,522.04

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Solution

The fourth proportional to 20,953.41, 28,915.83 and 11,522.04 is: 15,900.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.41 : 28,915.83 = 11,522.04 : x
  2. Step 2: Convert to fraction form
    20,953.41/28,915.83 = 11,522.04/x
  3. Step 3: Cross multiply
    20,953.41x = 28,915.83 × 11,522.04
  4. Step 4: Simplify right side
    20,953.41x = 333,169,349.89
  5. Step 5: Solve for x
    x = 333,169,349.89/20,953.41
  6. Step 6: Final answer
    x = 15,900.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.