Home / 46,428.67-69,634.09-13,140.69

Finding the Fourth Proportional to 46,428.67, 69,634.09 and 13,140.69

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Solution

The fourth proportional to 46,428.67, 69,634.09 and 13,140.69 is: 19,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,428.67 : 69,634.09 = 13,140.69 : x
  2. Step 2: Convert to fraction form
    46,428.67/69,634.09 = 13,140.69/x
  3. Step 3: Cross multiply
    46,428.67x = 69,634.09 × 13,140.69
  4. Step 4: Simplify right side
    46,428.67x = 915,039,990.12
  5. Step 5: Solve for x
    x = 915,039,990.12/46,428.67
  6. Step 6: Final answer
    x = 19,708.51

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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.