Home / 30,804.05-42,509.66-16,656.89

Finding the Fourth Proportional to 30,804.05, 42,509.66 and 16,656.89

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Solution

The fourth proportional to 30,804.05, 42,509.66 and 16,656.89 is: 22,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.05 : 42,509.66 = 16,656.89 : x
  2. Step 2: Convert to fraction form
    30,804.05/42,509.66 = 16,656.89/x
  3. Step 3: Cross multiply
    30,804.05x = 42,509.66 × 16,656.89
  4. Step 4: Simplify right side
    30,804.05x = 708,078,767.54
  5. Step 5: Solve for x
    x = 708,078,767.54/30,804.05
  6. Step 6: Final answer
    x = 22,986.55

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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.