Home / 28,568.78-39,444.40-17,817.84

Finding the Fourth Proportional to 28,568.78, 39,444.40 and 17,817.84

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Solution

The fourth proportional to 28,568.78, 39,444.40 and 17,817.84 is: 24,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.78 : 39,444.40 = 17,817.84 : x
  2. Step 2: Convert to fraction form
    28,568.78/39,444.40 = 17,817.84/x
  3. Step 3: Cross multiply
    28,568.78x = 39,444.40 × 17,817.84
  4. Step 4: Simplify right side
    28,568.78x = 702,814,008.10
  5. Step 5: Solve for x
    x = 702,814,008.10/28,568.78
  6. Step 6: Final answer
    x = 24,600.77

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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.