Home / 30,793.62-42,501.99-20,019.74

Finding the Fourth Proportional to 30,793.62, 42,501.99 and 20,019.74

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Solution

The fourth proportional to 30,793.62, 42,501.99 and 20,019.74 is: 27,631.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,793.62 : 42,501.99 = 20,019.74 : x
  2. Step 2: Convert to fraction form
    30,793.62/42,501.99 = 20,019.74/x
  3. Step 3: Cross multiply
    30,793.62x = 42,501.99 × 20,019.74
  4. Step 4: Simplify right side
    30,793.62x = 850,878,811.23
  5. Step 5: Solve for x
    x = 850,878,811.23/30,793.62
  6. Step 6: Final answer
    x = 27,631.66

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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.