Home / 28,886.37-39,863.26-16,139.59

Finding the Fourth Proportional to 28,886.37, 39,863.26 and 16,139.59

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Solution

The fourth proportional to 28,886.37, 39,863.26 and 16,139.59 is: 22,272.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.37 : 39,863.26 = 16,139.59 : x
  2. Step 2: Convert to fraction form
    28,886.37/39,863.26 = 16,139.59/x
  3. Step 3: Cross multiply
    28,886.37x = 39,863.26 × 16,139.59
  4. Step 4: Simplify right side
    28,886.37x = 643,376,502.19
  5. Step 5: Solve for x
    x = 643,376,502.19/28,886.37
  6. Step 6: Final answer
    x = 22,272.67

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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.