Home / 20,550.06-28,358.01-12,051

Finding the Fourth Proportional to 20,550.06, 28,358.01 and 12,051

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Solution

The fourth proportional to 20,550.06, 28,358.01 and 12,051 is: 16,629.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.06 : 28,358.01 = 12,051 : x
  2. Step 2: Convert to fraction form
    20,550.06/28,358.01 = 12,051/x
  3. Step 3: Cross multiply
    20,550.06x = 28,358.01 × 12,051
  4. Step 4: Simplify right side
    20,550.06x = 341,742,378.51
  5. Step 5: Solve for x
    x = 341,742,378.51/20,550.06
  6. Step 6: Final answer
    x = 16,629.75

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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.