Home / 19,790.28-29,685.44-4,999.36

Finding the Fourth Proportional to 19,790.28, 29,685.44 and 4,999.36

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Solution

The fourth proportional to 19,790.28, 29,685.44 and 4,999.36 is: 7,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.28 : 29,685.44 = 4,999.36 : x
  2. Step 2: Convert to fraction form
    19,790.28/29,685.44 = 4,999.36/x
  3. Step 3: Cross multiply
    19,790.28x = 29,685.44 × 4,999.36
  4. Step 4: Simplify right side
    19,790.28x = 148,408,201.32
  5. Step 5: Solve for x
    x = 148,408,201.32/19,790.28
  6. Step 6: Final answer
    x = 7,499.05

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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.