Home / 28,039.97-38,690.70-16,709.18

Finding the Fourth Proportional to 28,039.97, 38,690.70 and 16,709.18

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Solution

The fourth proportional to 28,039.97, 38,690.70 and 16,709.18 is: 23,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.97 : 38,690.70 = 16,709.18 : x
  2. Step 2: Convert to fraction form
    28,039.97/38,690.70 = 16,709.18/x
  3. Step 3: Cross multiply
    28,039.97x = 38,690.70 × 16,709.18
  4. Step 4: Simplify right side
    28,039.97x = 646,489,677.17
  5. Step 5: Solve for x
    x = 646,489,677.17/28,039.97
  6. Step 6: Final answer
    x = 23,056.01

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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.