Home / 39,072.17-53,919.53-21,167.25

Finding the Fourth Proportional to 39,072.17, 53,919.53 and 21,167.25

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Solution

The fourth proportional to 39,072.17, 53,919.53 and 21,167.25 is: 29,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.17 : 53,919.53 = 21,167.25 : x
  2. Step 2: Convert to fraction form
    39,072.17/53,919.53 = 21,167.25/x
  3. Step 3: Cross multiply
    39,072.17x = 53,919.53 × 21,167.25
  4. Step 4: Simplify right side
    39,072.17x = 1,141,328,171.39
  5. Step 5: Solve for x
    x = 1,141,328,171.39/39,072.17
  6. Step 6: Final answer
    x = 29,210.77

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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.