Home / 20,908.26-31,362.48-7,066.98

Finding the Fourth Proportional to 20,908.26, 31,362.48 and 7,066.98

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Solution

The fourth proportional to 20,908.26, 31,362.48 and 7,066.98 is: 10,600.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.26 : 31,362.48 = 7,066.98 : x
  2. Step 2: Convert to fraction form
    20,908.26/31,362.48 = 7,066.98/x
  3. Step 3: Cross multiply
    20,908.26x = 31,362.48 × 7,066.98
  4. Step 4: Simplify right side
    20,908.26x = 221,638,018.91
  5. Step 5: Solve for x
    x = 221,638,018.91/20,908.26
  6. Step 6: Final answer
    x = 10,600.50

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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.