Home / 28,746.47-39,667.78-15,998.69

Finding the Fourth Proportional to 28,746.47, 39,667.78 and 15,998.69

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Solution

The fourth proportional to 28,746.47, 39,667.78 and 15,998.69 is: 22,076.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.47 : 39,667.78 = 15,998.69 : x
  2. Step 2: Convert to fraction form
    28,746.47/39,667.78 = 15,998.69/x
  3. Step 3: Cross multiply
    28,746.47x = 39,667.78 × 15,998.69
  4. Step 4: Simplify right side
    28,746.47x = 634,632,515.21
  5. Step 5: Solve for x
    x = 634,632,515.21/28,746.47
  6. Step 6: Final answer
    x = 22,076.89

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Double scale
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Similar ratio
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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.