Home / 19,782.20-29,503.18-16,623.20

Finding the Fourth Proportional to 19,782.20, 29,503.18 and 16,623.20

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Solution

The fourth proportional to 19,782.20, 29,503.18 and 16,623.20 is: 24,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.20 : 29,503.18 = 16,623.20 : x
  2. Step 2: Convert to fraction form
    19,782.20/29,503.18 = 16,623.20/x
  3. Step 3: Cross multiply
    19,782.20x = 29,503.18 × 16,623.20
  4. Step 4: Simplify right side
    19,782.20x = 490,437,261.78
  5. Step 5: Solve for x
    x = 490,437,261.78/19,782.20
  6. Step 6: Final answer
    x = 24,791.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.