Home / 20,555.59-30,804.22-15,021.67

Finding the Fourth Proportional to 20,555.59, 30,804.22 and 15,021.67

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Solution

The fourth proportional to 20,555.59, 30,804.22 and 15,021.67 is: 22,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.59 : 30,804.22 = 15,021.67 : x
  2. Step 2: Convert to fraction form
    20,555.59/30,804.22 = 15,021.67/x
  3. Step 3: Cross multiply
    20,555.59x = 30,804.22 × 15,021.67
  4. Step 4: Simplify right side
    20,555.59x = 462,730,827.45
  5. Step 5: Solve for x
    x = 462,730,827.45/20,555.59
  6. Step 6: Final answer
    x = 22,511.19

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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.