Home / 20,674.60-28,541.76-13,612.24

Finding the Fourth Proportional to 20,674.60, 28,541.76 and 13,612.24

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Solution

The fourth proportional to 20,674.60, 28,541.76 and 13,612.24 is: 18,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.60 : 28,541.76 = 13,612.24 : x
  2. Step 2: Convert to fraction form
    20,674.60/28,541.76 = 13,612.24/x
  3. Step 3: Cross multiply
    20,674.60x = 28,541.76 × 13,612.24
  4. Step 4: Simplify right side
    20,674.60x = 388,517,287.14
  5. Step 5: Solve for x
    x = 388,517,287.14/20,674.60
  6. Step 6: Final answer
    x = 18,792.01

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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.