Home / 20,384.37-28,125.08-11,768.45

Finding the Fourth Proportional to 20,384.37, 28,125.08 and 11,768.45

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Solution

The fourth proportional to 20,384.37, 28,125.08 and 11,768.45 is: 16,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.37 : 28,125.08 = 11,768.45 : x
  2. Step 2: Convert to fraction form
    20,384.37/28,125.08 = 11,768.45/x
  3. Step 3: Cross multiply
    20,384.37x = 28,125.08 × 11,768.45
  4. Step 4: Simplify right side
    20,384.37x = 330,988,442.39
  5. Step 5: Solve for x
    x = 330,988,442.39/20,384.37
  6. Step 6: Final answer
    x = 16,237.36

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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.