Home / 20,807.49-31,204.76-6,953.25

Finding the Fourth Proportional to 20,807.49, 31,204.76 and 6,953.25

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Solution

The fourth proportional to 20,807.49, 31,204.76 and 6,953.25 is: 10,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807.49 : 31,204.76 = 6,953.25 : x
  2. Step 2: Convert to fraction form
    20,807.49/31,204.76 = 6,953.25/x
  3. Step 3: Cross multiply
    20,807.49x = 31,204.76 × 6,953.25
  4. Step 4: Simplify right side
    20,807.49x = 216,974,462.70
  5. Step 5: Solve for x
    x = 216,974,462.70/20,807.49
  6. Step 6: Final answer
    x = 10,427.71

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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.