Home / 19,009.20-28,535.40-11,222.40

Finding the Fourth Proportional to 19,009.20, 28,535.40 and 11,222.40

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Solution

The fourth proportional to 19,009.20, 28,535.40 and 11,222.40 is: 16,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.20 : 28,535.40 = 11,222.40 : x
  2. Step 2: Convert to fraction form
    19,009.20/28,535.40 = 11,222.40/x
  3. Step 3: Cross multiply
    19,009.20x = 28,535.40 × 11,222.40
  4. Step 4: Simplify right side
    19,009.20x = 320,235,672.96
  5. Step 5: Solve for x
    x = 320,235,672.96/19,009.20
  6. Step 6: Final answer
    x = 16,846.35

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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.