Home / 28,866.30-39,823.80-22,140.06

Finding the Fourth Proportional to 28,866.30, 39,823.80 and 22,140.06

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Solution

The fourth proportional to 28,866.30, 39,823.80 and 22,140.06 is: 30,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.30 : 39,823.80 = 22,140.06 : x
  2. Step 2: Convert to fraction form
    28,866.30/39,823.80 = 22,140.06/x
  3. Step 3: Cross multiply
    28,866.30x = 39,823.80 × 22,140.06
  4. Step 4: Simplify right side
    28,866.30x = 881,701,321.43
  5. Step 5: Solve for x
    x = 881,701,321.43/28,866.30
  6. Step 6: Final answer
    x = 30,544.31

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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.