Home / 21,991,804.40-32,931,719.40-20,984,034.80

Finding the Fourth Proportional to 21,991,804.40, 32,931,719.40 and 20,984,034.80

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Solution

The fourth proportional to 21,991,804.40, 32,931,719.40 and 20,984,034.80 is: 31,422,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,804.40 : 32,931,719.40 = 20,984,034.80 : x
  2. Step 2: Convert to fraction form
    21,991,804.40/32,931,719.40 = 20,984,034.80/x
  3. Step 3: Cross multiply
    21,991,804.40x = 32,931,719.40 × 20,984,034.80
  4. Step 4: Simplify right side
    21,991,804.40x = 691,040,345,913,435.12
  5. Step 5: Solve for x
    x = 691,040,345,913,435.12/21,991,804.40
  6. Step 6: Final answer
    x = 31,422,630.60

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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.