Home / 28,065.84-38,734.58-17,857.80

Finding the Fourth Proportional to 28,065.84, 38,734.58 and 17,857.80

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Solution

The fourth proportional to 28,065.84, 38,734.58 and 17,857.80 is: 24,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.84 : 38,734.58 = 17,857.80 : x
  2. Step 2: Convert to fraction form
    28,065.84/38,734.58 = 17,857.80/x
  3. Step 3: Cross multiply
    28,065.84x = 38,734.58 × 17,857.80
  4. Step 4: Simplify right side
    28,065.84x = 691,714,382.72
  5. Step 5: Solve for x
    x = 691,714,382.72/28,065.84
  6. Step 6: Final answer
    x = 24,646.13

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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.