Home / 18,633.40-25,637.80-16,107.28

Finding the Fourth Proportional to 18,633.40, 25,637.80 and 16,107.28

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Solution

The fourth proportional to 18,633.40, 25,637.80 and 16,107.28 is: 22,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.40 : 25,637.80 = 16,107.28 : x
  2. Step 2: Convert to fraction form
    18,633.40/25,637.80 = 16,107.28/x
  3. Step 3: Cross multiply
    18,633.40x = 25,637.80 × 16,107.28
  4. Step 4: Simplify right side
    18,633.40x = 412,955,223.18
  5. Step 5: Solve for x
    x = 412,955,223.18/18,633.40
  6. Step 6: Final answer
    x = 22,162.10

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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.