Home / 28,915.09-39,897.61-16,168.53

Finding the Fourth Proportional to 28,915.09, 39,897.61 and 16,168.53

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Solution

The fourth proportional to 28,915.09, 39,897.61 and 16,168.53 is: 22,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.09 : 39,897.61 = 16,168.53 : x
  2. Step 2: Convert to fraction form
    28,915.09/39,897.61 = 16,168.53/x
  3. Step 3: Cross multiply
    28,915.09x = 39,897.61 × 16,168.53
  4. Step 4: Simplify right side
    28,915.09x = 645,085,704.21
  5. Step 5: Solve for x
    x = 645,085,704.21/28,915.09
  6. Step 6: Final answer
    x = 22,309.66

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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.