Home / 18,021.80-24,834.65-13,777.66

Finding the Fourth Proportional to 18,021.80, 24,834.65 and 13,777.66

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Solution

The fourth proportional to 18,021.80, 24,834.65 and 13,777.66 is: 18,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.80 : 24,834.65 = 13,777.66 : x
  2. Step 2: Convert to fraction form
    18,021.80/24,834.65 = 13,777.66/x
  3. Step 3: Cross multiply
    18,021.80x = 24,834.65 × 13,777.66
  4. Step 4: Simplify right side
    18,021.80x = 342,163,263.88
  5. Step 5: Solve for x
    x = 342,163,263.88/18,021.80
  6. Step 6: Final answer
    x = 18,986.07

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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.