Home / 19,139.60-28,709.40-5,993.30

Finding the Fourth Proportional to 19,139.60, 28,709.40 and 5,993.30

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Solution

The fourth proportional to 19,139.60, 28,709.40 and 5,993.30 is: 8,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.60 : 28,709.40 = 5,993.30 : x
  2. Step 2: Convert to fraction form
    19,139.60/28,709.40 = 5,993.30/x
  3. Step 3: Cross multiply
    19,139.60x = 28,709.40 × 5,993.30
  4. Step 4: Simplify right side
    19,139.60x = 172,064,047.02
  5. Step 5: Solve for x
    x = 172,064,047.02/19,139.60
  6. Step 6: Final answer
    x = 8,989.95

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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.