Home / 30,838.37-42,556.79-16,691.18

Finding the Fourth Proportional to 30,838.37, 42,556.79 and 16,691.18

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Solution

The fourth proportional to 30,838.37, 42,556.79 and 16,691.18 is: 23,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.37 : 42,556.79 = 16,691.18 : x
  2. Step 2: Convert to fraction form
    30,838.37/42,556.79 = 16,691.18/x
  3. Step 3: Cross multiply
    30,838.37x = 42,556.79 × 16,691.18
  4. Step 4: Simplify right side
    30,838.37x = 710,322,871.06
  5. Step 5: Solve for x
    x = 710,322,871.06/30,838.37
  6. Step 6: Final answer
    x = 23,033.74

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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.