Home / 28,854.63-39,819.60-16,918.20

Finding the Fourth Proportional to 28,854.63, 39,819.60 and 16,918.20

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Solution

The fourth proportional to 28,854.63, 39,819.60 and 16,918.20 is: 23,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.63 : 39,819.60 = 16,918.20 : x
  2. Step 2: Convert to fraction form
    28,854.63/39,819.60 = 16,918.20/x
  3. Step 3: Cross multiply
    28,854.63x = 39,819.60 × 16,918.20
  4. Step 4: Simplify right side
    28,854.63x = 673,675,956.72
  5. Step 5: Solve for x
    x = 673,675,956.72/28,854.63
  6. Step 6: Final answer
    x = 23,347.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.