Home / 28,548.90-39,401.60-16,618.82

Finding the Fourth Proportional to 28,548.90, 39,401.60 and 16,618.82

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Solution

The fourth proportional to 28,548.90, 39,401.60 and 16,618.82 is: 22,936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.90 : 39,401.60 = 16,618.82 : x
  2. Step 2: Convert to fraction form
    28,548.90/39,401.60 = 16,618.82/x
  3. Step 3: Cross multiply
    28,548.90x = 39,401.60 × 16,618.82
  4. Step 4: Simplify right side
    28,548.90x = 654,807,818.01
  5. Step 5: Solve for x
    x = 654,807,818.01/28,548.90
  6. Step 6: Final answer
    x = 22,936.36

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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.