Home / 28,740.30-39,653.85-16,806.57

Finding the Fourth Proportional to 28,740.30, 39,653.85 and 16,806.57

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Solution

The fourth proportional to 28,740.30, 39,653.85 and 16,806.57 is: 23,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.30 : 39,653.85 = 16,806.57 : x
  2. Step 2: Convert to fraction form
    28,740.30/39,653.85 = 16,806.57/x
  3. Step 3: Cross multiply
    28,740.30x = 39,653.85 × 16,806.57
  4. Step 4: Simplify right side
    28,740.30x = 666,445,205.79
  5. Step 5: Solve for x
    x = 666,445,205.79/28,740.30
  6. Step 6: Final answer
    x = 23,188.53

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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.