Home / 39,265.72-54,186.66-21,360.69

Finding the Fourth Proportional to 39,265.72, 54,186.66 and 21,360.69

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Solution

The fourth proportional to 39,265.72, 54,186.66 and 21,360.69 is: 29,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,265.72 : 54,186.66 = 21,360.69 : x
  2. Step 2: Convert to fraction form
    39,265.72/54,186.66 = 21,360.69/x
  3. Step 3: Cross multiply
    39,265.72x = 54,186.66 × 21,360.69
  4. Step 4: Simplify right side
    39,265.72x = 1,157,464,446.40
  5. Step 5: Solve for x
    x = 1,157,464,446.40/39,265.72
  6. Step 6: Final answer
    x = 29,477.73

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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.