Home / 18,680.71-28,021.16-5,533.33

Finding the Fourth Proportional to 18,680.71, 28,021.16 and 5,533.33

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Solution

The fourth proportional to 18,680.71, 28,021.16 and 5,533.33 is: 8,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.71 : 28,021.16 = 5,533.33 : x
  2. Step 2: Convert to fraction form
    18,680.71/28,021.16 = 5,533.33/x
  3. Step 3: Cross multiply
    18,680.71x = 28,021.16 × 5,533.33
  4. Step 4: Simplify right side
    18,680.71x = 155,050,325.26
  5. Step 5: Solve for x
    x = 155,050,325.26/18,680.71
  6. Step 6: Final answer
    x = 8,300.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.