Home / 21,323,268.10-31,984,902.15-20,898,115.30

Finding the Fourth Proportional to 21,323,268.10, 31,984,902.15 and 20,898,115.30

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Solution

The fourth proportional to 21,323,268.10, 31,984,902.15 and 20,898,115.30 is: 31,347,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323,268.10 : 31,984,902.15 = 20,898,115.30 : x
  2. Step 2: Convert to fraction form
    21,323,268.10/31,984,902.15 = 20,898,115.30/x
  3. Step 3: Cross multiply
    21,323,268.10x = 31,984,902.15 × 20,898,115.30
  4. Step 4: Simplify right side
    21,323,268.10x = 668,424,172,989,917.88
  5. Step 5: Solve for x
    x = 668,424,172,989,917.88/21,323,268.10
  6. Step 6: Final answer
    x = 31,347,172.95

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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.