Home / 30,651.42-45,790.80-19,468.56

Finding the Fourth Proportional to 30,651.42, 45,790.80 and 19,468.56

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Solution

The fourth proportional to 30,651.42, 45,790.80 and 19,468.56 is: 29,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.42 : 45,790.80 = 19,468.56 : x
  2. Step 2: Convert to fraction form
    30,651.42/45,790.80 = 19,468.56/x
  3. Step 3: Cross multiply
    30,651.42x = 45,790.80 × 19,468.56
  4. Step 4: Simplify right side
    30,651.42x = 891,480,937.25
  5. Step 5: Solve for x
    x = 891,480,937.25/30,651.42
  6. Step 6: Final answer
    x = 29,084.49

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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.