Home / 30,886.05-42,621.60-16,738.59

Finding the Fourth Proportional to 30,886.05, 42,621.60 and 16,738.59

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Solution

The fourth proportional to 30,886.05, 42,621.60 and 16,738.59 is: 23,098.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.05 : 42,621.60 = 16,738.59 : x
  2. Step 2: Convert to fraction form
    30,886.05/42,621.60 = 16,738.59/x
  3. Step 3: Cross multiply
    30,886.05x = 42,621.60 × 16,738.59
  4. Step 4: Simplify right side
    30,886.05x = 713,425,274.44
  5. Step 5: Solve for x
    x = 713,425,274.44/30,886.05
  6. Step 6: Final answer
    x = 23,098.63

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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.