Home / 21,731,347.80-32,597,021.70-13,122,003.60

Finding the Fourth Proportional to 21,731,347.80, 32,597,021.70 and 13,122,003.60

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Solution

The fourth proportional to 21,731,347.80, 32,597,021.70 and 13,122,003.60 is: 19,683,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,347.80 : 32,597,021.70 = 13,122,003.60 : x
  2. Step 2: Convert to fraction form
    21,731,347.80/32,597,021.70 = 13,122,003.60/x
  3. Step 3: Cross multiply
    21,731,347.80x = 32,597,021.70 × 13,122,003.60
  4. Step 4: Simplify right side
    21,731,347.80x = 427,738,236,096,678.12
  5. Step 5: Solve for x
    x = 427,738,236,096,678.12/21,731,347.80
  6. Step 6: Final answer
    x = 19,683,005.40

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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.