Home / 28,415.13-39,206.46-16,476.22

Finding the Fourth Proportional to 28,415.13, 39,206.46 and 16,476.22

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Solution

The fourth proportional to 28,415.13, 39,206.46 and 16,476.22 is: 22,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.13 : 39,206.46 = 16,476.22 : x
  2. Step 2: Convert to fraction form
    28,415.13/39,206.46 = 16,476.22/x
  3. Step 3: Cross multiply
    28,415.13x = 39,206.46 × 16,476.22
  4. Step 4: Simplify right side
    28,415.13x = 645,974,260.38
  5. Step 5: Solve for x
    x = 645,974,260.38/28,415.13
  6. Step 6: Final answer
    x = 22,733.46

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Double scale
Find fourth proportional to 28,416.13, 39,207.84 and 16,477.22
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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.