Home / 20,019.18-29,970.44-19,261.02

Finding the Fourth Proportional to 20,019.18, 29,970.44 and 19,261.02

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Solution

The fourth proportional to 20,019.18, 29,970.44 and 19,261.02 is: 28,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.18 : 29,970.44 = 19,261.02 : x
  2. Step 2: Convert to fraction form
    20,019.18/29,970.44 = 19,261.02/x
  3. Step 3: Cross multiply
    20,019.18x = 29,970.44 × 19,261.02
  4. Step 4: Simplify right side
    20,019.18x = 577,261,147.94
  5. Step 5: Solve for x
    x = 577,261,147.94/20,019.18
  6. Step 6: Final answer
    x = 28,835.40

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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.