Home / 28,975.53-39,987.20-17,039.98

Finding the Fourth Proportional to 28,975.53, 39,987.20 and 17,039.98

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Solution

The fourth proportional to 28,975.53, 39,987.20 and 17,039.98 is: 23,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.53 : 39,987.20 = 17,039.98 : x
  2. Step 2: Convert to fraction form
    28,975.53/39,987.20 = 17,039.98/x
  3. Step 3: Cross multiply
    28,975.53x = 39,987.20 × 17,039.98
  4. Step 4: Simplify right side
    28,975.53x = 681,381,088.26
  5. Step 5: Solve for x
    x = 681,381,088.26/28,975.53
  6. Step 6: Final answer
    x = 23,515.74

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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.