Home / 20,370.83-30,559.28-7,222.10

Finding the Fourth Proportional to 20,370.83, 30,559.28 and 7,222.10

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Solution

The fourth proportional to 20,370.83, 30,559.28 and 7,222.10 is: 10,834.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.83 : 30,559.28 = 7,222.10 : x
  2. Step 2: Convert to fraction form
    20,370.83/30,559.28 = 7,222.10/x
  3. Step 3: Cross multiply
    20,370.83x = 30,559.28 × 7,222.10
  4. Step 4: Simplify right side
    20,370.83x = 220,701,987.18
  5. Step 5: Solve for x
    x = 220,701,987.18/20,370.83
  6. Step 6: Final answer
    x = 10,834.22

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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.