Home / 28,839.40-39,783.78-26,564.20

Finding the Fourth Proportional to 28,839.40, 39,783.78 and 26,564.20

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Solution

The fourth proportional to 28,839.40, 39,783.78 and 26,564.20 is: 36,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.40 : 39,783.78 = 26,564.20 : x
  2. Step 2: Convert to fraction form
    28,839.40/39,783.78 = 26,564.20/x
  3. Step 3: Cross multiply
    28,839.40x = 39,783.78 × 26,564.20
  4. Step 4: Simplify right side
    28,839.40x = 1,056,824,288.68
  5. Step 5: Solve for x
    x = 1,056,824,288.68/28,839.40
  6. Step 6: Final answer
    x = 36,645.16

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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.