Home / 30,493.39-45,740.07-20,102.71

Finding the Fourth Proportional to 30,493.39, 45,740.07 and 20,102.71

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Solution

The fourth proportional to 30,493.39, 45,740.07 and 20,102.71 is: 30,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,493.39 : 45,740.07 = 20,102.71 : x
  2. Step 2: Convert to fraction form
    30,493.39/45,740.07 = 20,102.71/x
  3. Step 3: Cross multiply
    30,493.39x = 45,740.07 × 20,102.71
  4. Step 4: Simplify right side
    30,493.39x = 919,499,362.59
  5. Step 5: Solve for x
    x = 919,499,362.59/30,493.39
  6. Step 6: Final answer
    x = 30,154.06

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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.