Home / 28,245.15-42,374.93-19,941.35

Finding the Fourth Proportional to 28,245.15, 42,374.93 and 19,941.35

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Solution

The fourth proportional to 28,245.15, 42,374.93 and 19,941.35 is: 29,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.15 : 42,374.93 = 19,941.35 : x
  2. Step 2: Convert to fraction form
    28,245.15/42,374.93 = 19,941.35/x
  3. Step 3: Cross multiply
    28,245.15x = 42,374.93 × 19,941.35
  4. Step 4: Simplify right side
    28,245.15x = 845,012,998.77
  5. Step 5: Solve for x
    x = 845,012,998.77/28,245.15
  6. Step 6: Final answer
    x = 29,917.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.