Home / 28,058.84-38,720.85-16,121.23

Finding the Fourth Proportional to 28,058.84, 38,720.85 and 16,121.23

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Solution

The fourth proportional to 28,058.84, 38,720.85 and 16,121.23 is: 22,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058.84 : 38,720.85 = 16,121.23 : x
  2. Step 2: Convert to fraction form
    28,058.84/38,720.85 = 16,121.23/x
  3. Step 3: Cross multiply
    28,058.84x = 38,720.85 × 16,121.23
  4. Step 4: Simplify right side
    28,058.84x = 624,227,879.88
  5. Step 5: Solve for x
    x = 624,227,879.88/28,058.84
  6. Step 6: Final answer
    x = 22,247.10

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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.