Home / 20,212.04-30,289.44-15,211.08

Finding the Fourth Proportional to 20,212.04, 30,289.44 and 15,211.08

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Solution

The fourth proportional to 20,212.04, 30,289.44 and 15,211.08 is: 22,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.04 : 30,289.44 = 15,211.08 : x
  2. Step 2: Convert to fraction form
    20,212.04/30,289.44 = 15,211.08/x
  3. Step 3: Cross multiply
    20,212.04x = 30,289.44 × 15,211.08
  4. Step 4: Simplify right side
    20,212.04x = 460,735,095.00
  5. Step 5: Solve for x
    x = 460,735,095.00/20,212.04
  6. Step 6: Final answer
    x = 22,795.08

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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.