Home / 18,431.28-25,435.24-10,476.16

Finding the Fourth Proportional to 18,431.28, 25,435.24 and 10,476.16

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Solution

The fourth proportional to 18,431.28, 25,435.24 and 10,476.16 is: 14,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.28 : 25,435.24 = 10,476.16 : x
  2. Step 2: Convert to fraction form
    18,431.28/25,435.24 = 10,476.16/x
  3. Step 3: Cross multiply
    18,431.28x = 25,435.24 × 10,476.16
  4. Step 4: Simplify right side
    18,431.28x = 266,463,643.88
  5. Step 5: Solve for x
    x = 266,463,643.88/18,431.28
  6. Step 6: Final answer
    x = 14,457.14

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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.