Home / 28,708.90-39,619.60-15,963.39

Finding the Fourth Proportional to 28,708.90, 39,619.60 and 15,963.39

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Solution

The fourth proportional to 28,708.90, 39,619.60 and 15,963.39 is: 22,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.90 : 39,619.60 = 15,963.39 : x
  2. Step 2: Convert to fraction form
    28,708.90/39,619.60 = 15,963.39/x
  3. Step 3: Cross multiply
    28,708.90x = 39,619.60 × 15,963.39
  4. Step 4: Simplify right side
    28,708.90x = 632,463,126.44
  5. Step 5: Solve for x
    x = 632,463,126.44/28,708.90
  6. Step 6: Final answer
    x = 22,030.21

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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.