Home / 25,187.09-34,758.34-13,857.30

Finding the Fourth Proportional to 25,187.09, 34,758.34 and 13,857.30

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Solution

The fourth proportional to 25,187.09, 34,758.34 and 13,857.30 is: 19,123.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.09 : 34,758.34 = 13,857.30 : x
  2. Step 2: Convert to fraction form
    25,187.09/34,758.34 = 13,857.30/x
  3. Step 3: Cross multiply
    25,187.09x = 34,758.34 × 13,857.30
  4. Step 4: Simplify right side
    25,187.09x = 481,656,710.24
  5. Step 5: Solve for x
    x = 481,656,710.24/25,187.09
  6. Step 6: Final answer
    x = 19,123.16

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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.