Home / 28,886.63-39,859.61-16,138.26

Finding the Fourth Proportional to 28,886.63, 39,859.61 and 16,138.26

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Solution

The fourth proportional to 28,886.63, 39,859.61 and 16,138.26 is: 22,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.63 : 39,859.61 = 16,138.26 : x
  2. Step 2: Convert to fraction form
    28,886.63/39,859.61 = 16,138.26/x
  3. Step 3: Cross multiply
    28,886.63x = 39,859.61 × 16,138.26
  4. Step 4: Simplify right side
    28,886.63x = 643,264,668.99
  5. Step 5: Solve for x
    x = 643,264,668.99/28,886.63
  6. Step 6: Final answer
    x = 22,268.60

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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.