Home / 39,097.09-53,919.12-30,485.38

Finding the Fourth Proportional to 39,097.09, 53,919.12 and 30,485.38

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Solution

The fourth proportional to 39,097.09, 53,919.12 and 30,485.38 is: 42,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,097.09 : 53,919.12 = 30,485.38 : x
  2. Step 2: Convert to fraction form
    39,097.09/53,919.12 = 30,485.38/x
  3. Step 3: Cross multiply
    39,097.09x = 53,919.12 × 30,485.38
  4. Step 4: Simplify right side
    39,097.09x = 1,643,744,862.47
  5. Step 5: Solve for x
    x = 1,643,744,862.47/39,097.09
  6. Step 6: Final answer
    x = 42,042.64

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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.