Home / 20,090.89-30,087.12-14,153.18

Finding the Fourth Proportional to 20,090.89, 30,087.12 and 14,153.18

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Solution

The fourth proportional to 20,090.89, 30,087.12 and 14,153.18 is: 21,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.89 : 30,087.12 = 14,153.18 : x
  2. Step 2: Convert to fraction form
    20,090.89/30,087.12 = 14,153.18/x
  3. Step 3: Cross multiply
    20,090.89x = 30,087.12 × 14,153.18
  4. Step 4: Simplify right side
    20,090.89x = 425,828,500.26
  5. Step 5: Solve for x
    x = 425,828,500.26/20,090.89
  6. Step 6: Final answer
    x = 21,195.11

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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.