Home / 28,911.70-43,367.55-17,830.90

Finding the Fourth Proportional to 28,911.70, 43,367.55 and 17,830.90

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Solution

The fourth proportional to 28,911.70, 43,367.55 and 17,830.90 is: 26,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.70 : 43,367.55 = 17,830.90 : x
  2. Step 2: Convert to fraction form
    28,911.70/43,367.55 = 17,830.90/x
  3. Step 3: Cross multiply
    28,911.70x = 43,367.55 × 17,830.90
  4. Step 4: Simplify right side
    28,911.70x = 773,282,447.30
  5. Step 5: Solve for x
    x = 773,282,447.30/28,911.70
  6. Step 6: Final answer
    x = 26,746.35

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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.