Home / 20,331.81-30,500.63-6,293.07

Finding the Fourth Proportional to 20,331.81, 30,500.63 and 6,293.07

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Solution

The fourth proportional to 20,331.81, 30,500.63 and 6,293.07 is: 9,440.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.81 : 30,500.63 = 6,293.07 : x
  2. Step 2: Convert to fraction form
    20,331.81/30,500.63 = 6,293.07/x
  3. Step 3: Cross multiply
    20,331.81x = 30,500.63 × 6,293.07
  4. Step 4: Simplify right side
    20,331.81x = 191,942,599.63
  5. Step 5: Solve for x
    x = 191,942,599.63/20,331.81
  6. Step 6: Final answer
    x = 9,440.51

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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.