Home / 28,863.23-39,840.32-16,931.39

Finding the Fourth Proportional to 28,863.23, 39,840.32 and 16,931.39

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Solution

The fourth proportional to 28,863.23, 39,840.32 and 16,931.39 is: 23,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.23 : 39,840.32 = 16,931.39 : x
  2. Step 2: Convert to fraction form
    28,863.23/39,840.32 = 16,931.39/x
  3. Step 3: Cross multiply
    28,863.23x = 39,840.32 × 16,931.39
  4. Step 4: Simplify right side
    28,863.23x = 674,551,838.77
  5. Step 5: Solve for x
    x = 674,551,838.77/28,863.23
  6. Step 6: Final answer
    x = 23,370.63

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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.