Home / 28,290.62-39,042.96-16,356.98

Finding the Fourth Proportional to 28,290.62, 39,042.96 and 16,356.98

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Solution

The fourth proportional to 28,290.62, 39,042.96 and 16,356.98 is: 22,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.62 : 39,042.96 = 16,356.98 : x
  2. Step 2: Convert to fraction form
    28,290.62/39,042.96 = 16,356.98/x
  3. Step 3: Cross multiply
    28,290.62x = 39,042.96 × 16,356.98
  4. Step 4: Simplify right side
    28,290.62x = 638,624,915.86
  5. Step 5: Solve for x
    x = 638,624,915.86/28,290.62
  6. Step 6: Final answer
    x = 22,573.73

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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.