Home / 17,428.12-26,139.42-14,485.46

Finding the Fourth Proportional to 17,428.12, 26,139.42 and 14,485.46

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Solution

The fourth proportional to 17,428.12, 26,139.42 and 14,485.46 is: 21,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,428.12 : 26,139.42 = 14,485.46 : x
  2. Step 2: Convert to fraction form
    17,428.12/26,139.42 = 14,485.46/x
  3. Step 3: Cross multiply
    17,428.12x = 26,139.42 × 14,485.46
  4. Step 4: Simplify right side
    17,428.12x = 378,641,522.83
  5. Step 5: Solve for x
    x = 378,641,522.83/17,428.12
  6. Step 6: Final answer
    x = 21,725.90

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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.