Home / 28,886.43-39,859.27-16,138.01

Finding the Fourth Proportional to 28,886.43, 39,859.27 and 16,138.01

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Solution

The fourth proportional to 28,886.43, 39,859.27 and 16,138.01 is: 22,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.43 : 39,859.27 = 16,138.01 : x
  2. Step 2: Convert to fraction form
    28,886.43/39,859.27 = 16,138.01/x
  3. Step 3: Cross multiply
    28,886.43x = 39,859.27 × 16,138.01
  4. Step 4: Simplify right side
    28,886.43x = 643,249,301.79
  5. Step 5: Solve for x
    x = 643,249,301.79/28,886.43
  6. Step 6: Final answer
    x = 22,268.22

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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.