Home / 19,431.09-29,149.37-9,570.45

Finding the Fourth Proportional to 19,431.09, 29,149.37 and 9,570.45

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Solution

The fourth proportional to 19,431.09, 29,149.37 and 9,570.45 is: 14,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.09 : 29,149.37 = 9,570.45 : x
  2. Step 2: Convert to fraction form
    19,431.09/29,149.37 = 9,570.45/x
  3. Step 3: Cross multiply
    19,431.09x = 29,149.37 × 9,570.45
  4. Step 4: Simplify right side
    19,431.09x = 278,972,685.46
  5. Step 5: Solve for x
    x = 278,972,685.46/19,431.09
  6. Step 6: Final answer
    x = 14,357.03

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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.