Home / 28,886.31-39,863.13-16,789.17

Finding the Fourth Proportional to 28,886.31, 39,863.13 and 16,789.17

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Solution

The fourth proportional to 28,886.31, 39,863.13 and 16,789.17 is: 23,169.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.31 : 39,863.13 = 16,789.17 : x
  2. Step 2: Convert to fraction form
    28,886.31/39,863.13 = 16,789.17/x
  3. Step 3: Cross multiply
    28,886.31x = 39,863.13 × 16,789.17
  4. Step 4: Simplify right side
    28,886.31x = 669,268,779.77
  5. Step 5: Solve for x
    x = 669,268,779.77/28,886.31
  6. Step 6: Final answer
    x = 23,169.06

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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.