Home / 20,594.98-28,421.22-11,163.54

Finding the Fourth Proportional to 20,594.98, 28,421.22 and 11,163.54

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Solution

The fourth proportional to 20,594.98, 28,421.22 and 11,163.54 is: 15,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.98 : 28,421.22 = 11,163.54 : x
  2. Step 2: Convert to fraction form
    20,594.98/28,421.22 = 11,163.54/x
  3. Step 3: Cross multiply
    20,594.98x = 28,421.22 × 11,163.54
  4. Step 4: Simplify right side
    20,594.98x = 317,281,426.32
  5. Step 5: Solve for x
    x = 317,281,426.32/20,594.98
  6. Step 6: Final answer
    x = 15,405.77

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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.