Home / 20,373.23-28,108.42-11,873.41

Finding the Fourth Proportional to 20,373.23, 28,108.42 and 11,873.41

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Solution

The fourth proportional to 20,373.23, 28,108.42 and 11,873.41 is: 16,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.23 : 28,108.42 = 11,873.41 : x
  2. Step 2: Convert to fraction form
    20,373.23/28,108.42 = 11,873.41/x
  3. Step 3: Cross multiply
    20,373.23x = 28,108.42 × 11,873.41
  4. Step 4: Simplify right side
    20,373.23x = 333,742,795.11
  5. Step 5: Solve for x
    x = 333,742,795.11/20,373.23
  6. Step 6: Final answer
    x = 16,381.44

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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.