Home / 20,412.64-30,621.44-15,154.16

Finding the Fourth Proportional to 20,412.64, 30,621.44 and 15,154.16

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Solution

The fourth proportional to 20,412.64, 30,621.44 and 15,154.16 is: 22,733.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.64 : 30,621.44 = 15,154.16 : x
  2. Step 2: Convert to fraction form
    20,412.64/30,621.44 = 15,154.16/x
  3. Step 3: Cross multiply
    20,412.64x = 30,621.44 × 15,154.16
  4. Step 4: Simplify right side
    20,412.64x = 464,042,201.19
  5. Step 5: Solve for x
    x = 464,042,201.19/20,412.64
  6. Step 6: Final answer
    x = 22,733.08

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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.