Home / 30,646.27-42,292.49-17,218.39

Finding the Fourth Proportional to 30,646.27, 42,292.49 and 17,218.39

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Solution

The fourth proportional to 30,646.27, 42,292.49 and 17,218.39 is: 23,761.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646.27 : 42,292.49 = 17,218.39 : x
  2. Step 2: Convert to fraction form
    30,646.27/42,292.49 = 17,218.39/x
  3. Step 3: Cross multiply
    30,646.27x = 42,292.49 × 17,218.39
  4. Step 4: Simplify right side
    30,646.27x = 728,208,289.34
  5. Step 5: Solve for x
    x = 728,208,289.34/30,646.27
  6. Step 6: Final answer
    x = 23,761.73

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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.