Home / 28,848.93-39,800.55-18,786

Finding the Fourth Proportional to 28,848.93, 39,800.55 and 18,786

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Solution

The fourth proportional to 28,848.93, 39,800.55 and 18,786 is: 25,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,848.93 : 39,800.55 = 18,786 : x
  2. Step 2: Convert to fraction form
    28,848.93/39,800.55 = 18,786/x
  3. Step 3: Cross multiply
    28,848.93x = 39,800.55 × 18,786
  4. Step 4: Simplify right side
    28,848.93x = 747,693,132.30
  5. Step 5: Solve for x
    x = 747,693,132.30/28,848.93
  6. Step 6: Final answer
    x = 25,917.53

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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.