Home / 30,935.37-42,700.96-18,187.94

Finding the Fourth Proportional to 30,935.37, 42,700.96 and 18,187.94

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Solution

The fourth proportional to 30,935.37, 42,700.96 and 18,187.94 is: 25,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.37 : 42,700.96 = 18,187.94 : x
  2. Step 2: Convert to fraction form
    30,935.37/42,700.96 = 18,187.94/x
  3. Step 3: Cross multiply
    30,935.37x = 42,700.96 × 18,187.94
  4. Step 4: Simplify right side
    30,935.37x = 776,642,428.44
  5. Step 5: Solve for x
    x = 776,642,428.44/30,935.37
  6. Step 6: Final answer
    x = 25,105.32

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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.