Home / 19,860.42-29,803.20-11,101.08

Finding the Fourth Proportional to 19,860.42, 29,803.20 and 11,101.08

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Solution

The fourth proportional to 19,860.42, 29,803.20 and 11,101.08 is: 16,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.42 : 29,803.20 = 11,101.08 : x
  2. Step 2: Convert to fraction form
    19,860.42/29,803.20 = 11,101.08/x
  3. Step 3: Cross multiply
    19,860.42x = 29,803.20 × 11,101.08
  4. Step 4: Simplify right side
    19,860.42x = 330,847,707.46
  5. Step 5: Solve for x
    x = 330,847,707.46/19,860.42
  6. Step 6: Final answer
    x = 16,658.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.