Home / 20,574.63-28,393.11-11,622.96

Finding the Fourth Proportional to 20,574.63, 28,393.11 and 11,622.96

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Solution

The fourth proportional to 20,574.63, 28,393.11 and 11,622.96 is: 16,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.63 : 28,393.11 = 11,622.96 : x
  2. Step 2: Convert to fraction form
    20,574.63/28,393.11 = 11,622.96/x
  3. Step 3: Cross multiply
    20,574.63x = 28,393.11 × 11,622.96
  4. Step 4: Simplify right side
    20,574.63x = 330,011,981.81
  5. Step 5: Solve for x
    x = 330,011,981.81/20,574.63
  6. Step 6: Final answer
    x = 16,039.75

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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.