Home / 28,915.67-43,377.57-8,926.80

Finding the Fourth Proportional to 28,915.67, 43,377.57 and 8,926.80

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Solution

The fourth proportional to 28,915.67, 43,377.57 and 8,926.80 is: 13,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.67 : 43,377.57 = 8,926.80 : x
  2. Step 2: Convert to fraction form
    28,915.67/43,377.57 = 8,926.80/x
  3. Step 3: Cross multiply
    28,915.67x = 43,377.57 × 8,926.80
  4. Step 4: Simplify right side
    28,915.67x = 387,222,729.21
  5. Step 5: Solve for x
    x = 387,222,729.21/28,915.67
  6. Step 6: Final answer
    x = 13,391.45

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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.