Home / 21,952,096.80-32,928,145.20-20,720,378.40

Finding the Fourth Proportional to 21,952,096.80, 32,928,145.20 and 20,720,378.40

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Solution

The fourth proportional to 21,952,096.80, 32,928,145.20 and 20,720,378.40 is: 31,080,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,952,096.80 : 32,928,145.20 = 20,720,378.40 : x
  2. Step 2: Convert to fraction form
    21,952,096.80/32,928,145.20 = 20,720,378.40/x
  3. Step 3: Cross multiply
    21,952,096.80x = 32,928,145.20 × 20,720,378.40
  4. Step 4: Simplify right side
    21,952,096.80x = 682,283,628,554,143.62
  5. Step 5: Solve for x
    x = 682,283,628,554,143.62/21,952,096.80
  6. Step 6: Final answer
    x = 31,080,567.60

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1.5x scale

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.