Home / 39,119.48-53,983.38-21,214.16

Finding the Fourth Proportional to 39,119.48, 53,983.38 and 21,214.16

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Solution

The fourth proportional to 39,119.48, 53,983.38 and 21,214.16 is: 29,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,119.48 : 53,983.38 = 21,214.16 : x
  2. Step 2: Convert to fraction form
    39,119.48/53,983.38 = 21,214.16/x
  3. Step 3: Cross multiply
    39,119.48x = 53,983.38 × 21,214.16
  4. Step 4: Simplify right side
    39,119.48x = 1,145,212,060.66
  5. Step 5: Solve for x
    x = 1,145,212,060.66/39,119.48
  6. Step 6: Final answer
    x = 29,274.73

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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.