Home / 19,550.76-26,972.98-12,840.02

Finding the Fourth Proportional to 19,550.76, 26,972.98 and 12,840.02

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Solution

The fourth proportional to 19,550.76, 26,972.98 and 12,840.02 is: 17,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,550.76 : 26,972.98 = 12,840.02 : x
  2. Step 2: Convert to fraction form
    19,550.76/26,972.98 = 12,840.02/x
  3. Step 3: Cross multiply
    19,550.76x = 26,972.98 × 12,840.02
  4. Step 4: Simplify right side
    19,550.76x = 346,333,637.99
  5. Step 5: Solve for x
    x = 346,333,637.99/19,550.76
  6. Step 6: Final answer
    x = 17,714.59

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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.