Home / 39,588.14-54,629.69-21,683.22

Finding the Fourth Proportional to 39,588.14, 54,629.69 and 21,683.22

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Solution

The fourth proportional to 39,588.14, 54,629.69 and 21,683.22 is: 29,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,588.14 : 54,629.69 = 21,683.22 : x
  2. Step 2: Convert to fraction form
    39,588.14/54,629.69 = 21,683.22/x
  3. Step 3: Cross multiply
    39,588.14x = 54,629.69 × 21,683.22
  4. Step 4: Simplify right side
    39,588.14x = 1,184,547,478.39
  5. Step 5: Solve for x
    x = 1,184,547,478.39/39,588.14
  6. Step 6: Final answer
    x = 29,921.78

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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.