Home / 28,915.93-39,897.23-16,338.97

Finding the Fourth Proportional to 28,915.93, 39,897.23 and 16,338.97

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Solution

The fourth proportional to 28,915.93, 39,897.23 and 16,338.97 is: 22,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,915.93 : 39,897.23 = 16,338.97 : x
  2. Step 2: Convert to fraction form
    28,915.93/39,897.23 = 16,338.97/x
  3. Step 3: Cross multiply
    28,915.93x = 39,897.23 × 16,338.97
  4. Step 4: Simplify right side
    28,915.93x = 651,879,562.36
  5. Step 5: Solve for x
    x = 651,879,562.36/28,915.93
  6. Step 6: Final answer
    x = 22,543.96

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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.