Home / 20,073.99-30,104.61-18,763.62

Finding the Fourth Proportional to 20,073.99, 30,104.61 and 18,763.62

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Solution

The fourth proportional to 20,073.99, 30,104.61 and 18,763.62 is: 28,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.99 : 30,104.61 = 18,763.62 : x
  2. Step 2: Convert to fraction form
    20,073.99/30,104.61 = 18,763.62/x
  3. Step 3: Cross multiply
    20,073.99x = 30,104.61 × 18,763.62
  4. Step 4: Simplify right side
    20,073.99x = 564,871,462.29
  5. Step 5: Solve for x
    x = 564,871,462.29/20,073.99
  6. Step 6: Final answer
    x = 28,139.47

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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.