Home / 21,298,840.40-31,948,260.60-17,519,704.40

Finding the Fourth Proportional to 21,298,840.40, 31,948,260.60 and 17,519,704.40

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Solution

The fourth proportional to 21,298,840.40, 31,948,260.60 and 17,519,704.40 is: 26,279,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298,840.40 : 31,948,260.60 = 17,519,704.40 : x
  2. Step 2: Convert to fraction form
    21,298,840.40/31,948,260.60 = 17,519,704.40/x
  3. Step 3: Cross multiply
    21,298,840.40x = 31,948,260.60 × 17,519,704.40
  4. Step 4: Simplify right side
    21,298,840.40x = 559,724,081,806,166.62
  5. Step 5: Solve for x
    x = 559,724,081,806,166.62/21,298,840.40
  6. Step 6: Final answer
    x = 26,279,556.60

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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.