Home / 28,740.74-39,661.43-15,993.27

Finding the Fourth Proportional to 28,740.74, 39,661.43 and 15,993.27

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Solution

The fourth proportional to 28,740.74, 39,661.43 and 15,993.27 is: 22,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.74 : 39,661.43 = 15,993.27 : x
  2. Step 2: Convert to fraction form
    28,740.74/39,661.43 = 15,993.27/x
  3. Step 3: Cross multiply
    28,740.74x = 39,661.43 × 15,993.27
  4. Step 4: Simplify right side
    28,740.74x = 634,315,878.61
  5. Step 5: Solve for x
    x = 634,315,878.61/28,740.74
  6. Step 6: Final answer
    x = 22,070.27

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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.