Home / 35,642.55-53,456.54-12,270.81

Finding the Fourth Proportional to 35,642.55, 53,456.54 and 12,270.81

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Solution

The fourth proportional to 35,642.55, 53,456.54 and 12,270.81 is: 18,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,642.55 : 53,456.54 = 12,270.81 : x
  2. Step 2: Convert to fraction form
    35,642.55/53,456.54 = 12,270.81/x
  3. Step 3: Cross multiply
    35,642.55x = 53,456.54 × 12,270.81
  4. Step 4: Simplify right side
    35,642.55x = 655,954,984.24
  5. Step 5: Solve for x
    x = 655,954,984.24/35,642.55
  6. Step 6: Final answer
    x = 18,403.71

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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.