Home / 27,182.48-40,787.63-12,389.50

Finding the Fourth Proportional to 27,182.48, 40,787.63 and 12,389.50

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Solution

The fourth proportional to 27,182.48, 40,787.63 and 12,389.50 is: 18,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,182.48 : 40,787.63 = 12,389.50 : x
  2. Step 2: Convert to fraction form
    27,182.48/40,787.63 = 12,389.50/x
  3. Step 3: Cross multiply
    27,182.48x = 40,787.63 × 12,389.50
  4. Step 4: Simplify right side
    27,182.48x = 505,338,341.89
  5. Step 5: Solve for x
    x = 505,338,341.89/27,182.48
  6. Step 6: Final answer
    x = 18,590.59

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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.