Home / 18,820.98-28,225.70-13,014.90

Finding the Fourth Proportional to 18,820.98, 28,225.70 and 13,014.90

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Solution

The fourth proportional to 18,820.98, 28,225.70 and 13,014.90 is: 19,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.98 : 28,225.70 = 13,014.90 : x
  2. Step 2: Convert to fraction form
    18,820.98/28,225.70 = 13,014.90/x
  3. Step 3: Cross multiply
    18,820.98x = 28,225.70 × 13,014.90
  4. Step 4: Simplify right side
    18,820.98x = 367,354,662.93
  5. Step 5: Solve for x
    x = 367,354,662.93/18,820.98
  6. Step 6: Final answer
    x = 19,518.36

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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.