Home / 35,403.42-53,105.12-13,218.52

Finding the Fourth Proportional to 35,403.42, 53,105.12 and 13,218.52

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Solution

The fourth proportional to 35,403.42, 53,105.12 and 13,218.52 is: 19,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,403.42 : 53,105.12 = 13,218.52 : x
  2. Step 2: Convert to fraction form
    35,403.42/53,105.12 = 13,218.52/x
  3. Step 3: Cross multiply
    35,403.42x = 53,105.12 × 13,218.52
  4. Step 4: Simplify right side
    35,403.42x = 701,971,273.15
  5. Step 5: Solve for x
    x = 701,971,273.15/35,403.42
  6. Step 6: Final answer
    x = 19,827.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.