Home / 20,995.94-31,495.57-6,955.40

Finding the Fourth Proportional to 20,995.94, 31,495.57 and 6,955.40

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Solution

The fourth proportional to 20,995.94, 31,495.57 and 6,955.40 is: 10,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.94 : 31,495.57 = 6,955.40 : x
  2. Step 2: Convert to fraction form
    20,995.94/31,495.57 = 6,955.40/x
  3. Step 3: Cross multiply
    20,995.94x = 31,495.57 × 6,955.40
  4. Step 4: Simplify right side
    20,995.94x = 219,064,348.93
  5. Step 5: Solve for x
    x = 219,064,348.93/20,995.94
  6. Step 6: Final answer
    x = 10,433.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.