Home / 20,462.42-28,235.22-11,509.58

Finding the Fourth Proportional to 20,462.42, 28,235.22 and 11,509.58

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Solution

The fourth proportional to 20,462.42, 28,235.22 and 11,509.58 is: 15,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.42 : 28,235.22 = 11,509.58 : x
  2. Step 2: Convert to fraction form
    20,462.42/28,235.22 = 11,509.58/x
  3. Step 3: Cross multiply
    20,462.42x = 28,235.22 × 11,509.58
  4. Step 4: Simplify right side
    20,462.42x = 324,975,523.41
  5. Step 5: Solve for x
    x = 324,975,523.41/20,462.42
  6. Step 6: Final answer
    x = 15,881.58

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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.