Home / 28,242.42-38,973.24-15,495.32

Finding the Fourth Proportional to 28,242.42, 38,973.24 and 15,495.32

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Solution

The fourth proportional to 28,242.42, 38,973.24 and 15,495.32 is: 21,382.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.42 : 38,973.24 = 15,495.32 : x
  2. Step 2: Convert to fraction form
    28,242.42/38,973.24 = 15,495.32/x
  3. Step 3: Cross multiply
    28,242.42x = 38,973.24 × 15,495.32
  4. Step 4: Simplify right side
    28,242.42x = 603,902,922.67
  5. Step 5: Solve for x
    x = 603,902,922.67/28,242.42
  6. Step 6: Final answer
    x = 21,382.83

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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.