Home / 20,698.43-28,567.77-11,746.77

Finding the Fourth Proportional to 20,698.43, 28,567.77 and 11,746.77

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Solution

The fourth proportional to 20,698.43, 28,567.77 and 11,746.77 is: 16,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.43 : 28,567.77 = 11,746.77 : x
  2. Step 2: Convert to fraction form
    20,698.43/28,567.77 = 11,746.77/x
  3. Step 3: Cross multiply
    20,698.43x = 28,567.77 × 11,746.77
  4. Step 4: Simplify right side
    20,698.43x = 335,578,880.76
  5. Step 5: Solve for x
    x = 335,578,880.76/20,698.43
  6. Step 6: Final answer
    x = 16,212.77

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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.