Home / 18,829.28-25,983.20-10,446.32

Finding the Fourth Proportional to 18,829.28, 25,983.20 and 10,446.32

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Solution

The fourth proportional to 18,829.28, 25,983.20 and 10,446.32 is: 14,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.28 : 25,983.20 = 10,446.32 : x
  2. Step 2: Convert to fraction form
    18,829.28/25,983.20 = 10,446.32/x
  3. Step 3: Cross multiply
    18,829.28x = 25,983.20 × 10,446.32
  4. Step 4: Simplify right side
    18,829.28x = 271,428,821.82
  5. Step 5: Solve for x
    x = 271,428,821.82/18,829.28
  6. Step 6: Final answer
    x = 14,415.25

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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.