Home / 39,265.20-54,186.48-21,360.69

Finding the Fourth Proportional to 39,265.20, 54,186.48 and 21,360.69

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Solution

The fourth proportional to 39,265.20, 54,186.48 and 21,360.69 is: 29,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,265.20 : 54,186.48 = 21,360.69 : x
  2. Step 2: Convert to fraction form
    39,265.20/54,186.48 = 21,360.69/x
  3. Step 3: Cross multiply
    39,265.20x = 54,186.48 × 21,360.69
  4. Step 4: Simplify right side
    39,265.20x = 1,157,460,601.47
  5. Step 5: Solve for x
    x = 1,157,460,601.47/39,265.20
  6. Step 6: Final answer
    x = 29,478.03

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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.