Home / 28,720.44-39,633.51-15,973.58

Finding the Fourth Proportional to 28,720.44, 39,633.51 and 15,973.58

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Solution

The fourth proportional to 28,720.44, 39,633.51 and 15,973.58 is: 22,043.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720.44 : 39,633.51 = 15,973.58 : x
  2. Step 2: Convert to fraction form
    28,720.44/39,633.51 = 15,973.58/x
  3. Step 3: Cross multiply
    28,720.44x = 39,633.51 × 15,973.58
  4. Step 4: Simplify right side
    28,720.44x = 633,089,011.56
  5. Step 5: Solve for x
    x = 633,089,011.56/28,720.44
  6. Step 6: Final answer
    x = 22,043.15

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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.