Home / 20,325.76-30,444.80-13,722.64

Finding the Fourth Proportional to 20,325.76, 30,444.80 and 13,722.64

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Solution

The fourth proportional to 20,325.76, 30,444.80 and 13,722.64 is: 20,554.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.76 : 30,444.80 = 13,722.64 : x
  2. Step 2: Convert to fraction form
    20,325.76/30,444.80 = 13,722.64/x
  3. Step 3: Cross multiply
    20,325.76x = 30,444.80 × 13,722.64
  4. Step 4: Simplify right side
    20,325.76x = 417,783,030.27
  5. Step 5: Solve for x
    x = 417,783,030.27/20,325.76
  6. Step 6: Final answer
    x = 20,554.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.