Home / 30,780.93-42,477.81-16,633.89

Finding the Fourth Proportional to 30,780.93, 42,477.81 and 16,633.89

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Solution

The fourth proportional to 30,780.93, 42,477.81 and 16,633.89 is: 22,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.93 : 42,477.81 = 16,633.89 : x
  2. Step 2: Convert to fraction form
    30,780.93/42,477.81 = 16,633.89/x
  3. Step 3: Cross multiply
    30,780.93x = 42,477.81 × 16,633.89
  4. Step 4: Simplify right side
    30,780.93x = 706,571,218.98
  5. Step 5: Solve for x
    x = 706,571,218.98/30,780.93
  6. Step 6: Final answer
    x = 22,954.84

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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.