Home / 31,628.55-47,419.38-19,145.62

Finding the Fourth Proportional to 31,628.55, 47,419.38 and 19,145.62

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Solution

The fourth proportional to 31,628.55, 47,419.38 and 19,145.62 is: 28,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,628.55 : 47,419.38 = 19,145.62 : x
  2. Step 2: Convert to fraction form
    31,628.55/47,419.38 = 19,145.62/x
  3. Step 3: Cross multiply
    31,628.55x = 47,419.38 × 19,145.62
  4. Step 4: Simplify right side
    31,628.55x = 907,873,561.19
  5. Step 5: Solve for x
    x = 907,873,561.19/31,628.55
  6. Step 6: Final answer
    x = 28,704.25

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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.