Home / 20,300.54-28,019.27-12,341.08

Finding the Fourth Proportional to 20,300.54, 28,019.27 and 12,341.08

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Solution

The fourth proportional to 20,300.54, 28,019.27 and 12,341.08 is: 17,033.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.54 : 28,019.27 = 12,341.08 : x
  2. Step 2: Convert to fraction form
    20,300.54/28,019.27 = 12,341.08/x
  3. Step 3: Cross multiply
    20,300.54x = 28,019.27 × 12,341.08
  4. Step 4: Simplify right side
    20,300.54x = 345,787,850.81
  5. Step 5: Solve for x
    x = 345,787,850.81/20,300.54
  6. Step 6: Final answer
    x = 17,033.43

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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.