Home / 30,951.61-42,713.69-16,804.45

Finding the Fourth Proportional to 30,951.61, 42,713.69 and 16,804.45

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Solution

The fourth proportional to 30,951.61, 42,713.69 and 16,804.45 is: 23,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.61 : 42,713.69 = 16,804.45 : x
  2. Step 2: Convert to fraction form
    30,951.61/42,713.69 = 16,804.45/x
  3. Step 3: Cross multiply
    30,951.61x = 42,713.69 × 16,804.45
  4. Step 4: Simplify right side
    30,951.61x = 717,780,067.92
  5. Step 5: Solve for x
    x = 717,780,067.92/30,951.61
  6. Step 6: Final answer
    x = 23,190.40

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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.