Home / 20,504.28-28,293.21-12,007.92

Finding the Fourth Proportional to 20,504.28, 28,293.21 and 12,007.92

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Solution

The fourth proportional to 20,504.28, 28,293.21 and 12,007.92 is: 16,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.28 : 28,293.21 = 12,007.92 : x
  2. Step 2: Convert to fraction form
    20,504.28/28,293.21 = 12,007.92/x
  3. Step 3: Cross multiply
    20,504.28x = 28,293.21 × 12,007.92
  4. Step 4: Simplify right side
    20,504.28x = 339,742,602.22
  5. Step 5: Solve for x
    x = 339,742,602.22/20,504.28
  6. Step 6: Final answer
    x = 16,569.35

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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.