Home / 20,866.09-31,303.91-7,015.09

Finding the Fourth Proportional to 20,866.09, 31,303.91 and 7,015.09

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Solution

The fourth proportional to 20,866.09, 31,303.91 and 7,015.09 is: 10,524.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866.09 : 31,303.91 = 7,015.09 : x
  2. Step 2: Convert to fraction form
    20,866.09/31,303.91 = 7,015.09/x
  3. Step 3: Cross multiply
    20,866.09x = 31,303.91 × 7,015.09
  4. Step 4: Simplify right side
    20,866.09x = 219,599,746.00
  5. Step 5: Solve for x
    x = 219,599,746.00/20,866.09
  6. Step 6: Final answer
    x = 10,524.24

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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.