Home / 20,903.96-31,470.02-19,066.88

Finding the Fourth Proportional to 20,903.96, 31,470.02 and 19,066.88

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Solution

The fourth proportional to 20,903.96, 31,470.02 and 19,066.88 is: 28,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.96 : 31,470.02 = 19,066.88 : x
  2. Step 2: Convert to fraction form
    20,903.96/31,470.02 = 19,066.88/x
  3. Step 3: Cross multiply
    20,903.96x = 31,470.02 × 19,066.88
  4. Step 4: Simplify right side
    20,903.96x = 600,035,094.94
  5. Step 5: Solve for x
    x = 600,035,094.94/20,903.96
  6. Step 6: Final answer
    x = 28,704.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.