Home / 30,942.51-42,700.71-16,795.35

Finding the Fourth Proportional to 30,942.51, 42,700.71 and 16,795.35

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Solution

The fourth proportional to 30,942.51, 42,700.71 and 16,795.35 is: 23,177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.51 : 42,700.71 = 16,795.35 : x
  2. Step 2: Convert to fraction form
    30,942.51/42,700.71 = 16,795.35/x
  3. Step 3: Cross multiply
    30,942.51x = 42,700.71 × 16,795.35
  4. Step 4: Simplify right side
    30,942.51x = 717,173,369.70
  5. Step 5: Solve for x
    x = 717,173,369.70/30,942.51
  6. Step 6: Final answer
    x = 23,177.61

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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.