Home / 28,353.11-39,116.75-28,309.37

Finding the Fourth Proportional to 28,353.11, 39,116.75 and 28,309.37

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Solution

The fourth proportional to 28,353.11, 39,116.75 and 28,309.37 is: 39,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.11 : 39,116.75 = 28,309.37 : x
  2. Step 2: Convert to fraction form
    28,353.11/39,116.75 = 28,309.37/x
  3. Step 3: Cross multiply
    28,353.11x = 39,116.75 × 28,309.37
  4. Step 4: Simplify right side
    28,353.11x = 1,107,370,211.82
  5. Step 5: Solve for x
    x = 1,107,370,211.82/28,353.11
  6. Step 6: Final answer
    x = 39,056.40

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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.