Home / 18,428.77-25,431.19-10,045.27

Finding the Fourth Proportional to 18,428.77, 25,431.19 and 10,045.27

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Solution

The fourth proportional to 18,428.77, 25,431.19 and 10,045.27 is: 13,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.77 : 25,431.19 = 10,045.27 : x
  2. Step 2: Convert to fraction form
    18,428.77/25,431.19 = 10,045.27/x
  3. Step 3: Cross multiply
    18,428.77x = 25,431.19 × 10,045.27
  4. Step 4: Simplify right side
    18,428.77x = 255,463,169.97
  5. Step 5: Solve for x
    x = 255,463,169.97/18,428.77
  6. Step 6: Final answer
    x = 13,862.19

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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.