Home / 39,072.38-53,919.90-21,167.51

Finding the Fourth Proportional to 39,072.38, 53,919.90 and 21,167.51

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Solution

The fourth proportional to 39,072.38, 53,919.90 and 21,167.51 is: 29,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.38 : 53,919.90 = 21,167.51 : x
  2. Step 2: Convert to fraction form
    39,072.38/53,919.90 = 21,167.51/x
  3. Step 3: Cross multiply
    39,072.38x = 53,919.90 × 21,167.51
  4. Step 4: Simplify right side
    39,072.38x = 1,141,349,752.85
  5. Step 5: Solve for x
    x = 1,141,349,752.85/39,072.38
  6. Step 6: Final answer
    x = 29,211.17

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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.