Home / 20,541.36-30,808.50-5,746.80

Finding the Fourth Proportional to 20,541.36, 30,808.50 and 5,746.80

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Solution

The fourth proportional to 20,541.36, 30,808.50 and 5,746.80 is: 8,619.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.36 : 30,808.50 = 5,746.80 : x
  2. Step 2: Convert to fraction form
    20,541.36/30,808.50 = 5,746.80/x
  3. Step 3: Cross multiply
    20,541.36x = 30,808.50 × 5,746.80
  4. Step 4: Simplify right side
    20,541.36x = 177,050,287.80
  5. Step 5: Solve for x
    x = 177,050,287.80/20,541.36
  6. Step 6: Final answer
    x = 8,619.21

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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.