Home / 30,382.09-41,928.08-16,955.98

Finding the Fourth Proportional to 30,382.09, 41,928.08 and 16,955.98

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Solution

The fourth proportional to 30,382.09, 41,928.08 and 16,955.98 is: 23,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.09 : 41,928.08 = 16,955.98 : x
  2. Step 2: Convert to fraction form
    30,382.09/41,928.08 = 16,955.98/x
  3. Step 3: Cross multiply
    30,382.09x = 41,928.08 × 16,955.98
  4. Step 4: Simplify right side
    30,382.09x = 710,931,827.54
  5. Step 5: Solve for x
    x = 710,931,827.54/30,382.09
  6. Step 6: Final answer
    x = 23,399.70

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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.