Home / 20,595.34-28,421.50-11,163.94

Finding the Fourth Proportional to 20,595.34, 28,421.50 and 11,163.94

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Solution

The fourth proportional to 20,595.34, 28,421.50 and 11,163.94 is: 15,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.34 : 28,421.50 = 11,163.94 : x
  2. Step 2: Convert to fraction form
    20,595.34/28,421.50 = 11,163.94/x
  3. Step 3: Cross multiply
    20,595.34x = 28,421.50 × 11,163.94
  4. Step 4: Simplify right side
    20,595.34x = 317,295,920.71
  5. Step 5: Solve for x
    x = 317,295,920.71/20,595.34
  6. Step 6: Final answer
    x = 15,406.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.