Home / 20,527.92-28,328.69-12,030.28

Finding the Fourth Proportional to 20,527.92, 28,328.69 and 12,030.28

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Solution

The fourth proportional to 20,527.92, 28,328.69 and 12,030.28 is: 16,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.92 : 28,328.69 = 12,030.28 : x
  2. Step 2: Convert to fraction form
    20,527.92/28,328.69 = 12,030.28/x
  3. Step 3: Cross multiply
    20,527.92x = 28,328.69 × 12,030.28
  4. Step 4: Simplify right side
    20,527.92x = 340,802,072.73
  5. Step 5: Solve for x
    x = 340,802,072.73/20,527.92
  6. Step 6: Final answer
    x = 16,601.88

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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.