Home / 20,898.32-28,852.72-13,834.64

Finding the Fourth Proportional to 20,898.32, 28,852.72 and 13,834.64

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Solution

The fourth proportional to 20,898.32, 28,852.72 and 13,834.64 is: 19,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.32 : 28,852.72 = 13,834.64 : x
  2. Step 2: Convert to fraction form
    20,898.32/28,852.72 = 13,834.64/x
  3. Step 3: Cross multiply
    20,898.32x = 28,852.72 × 13,834.64
  4. Step 4: Simplify right side
    20,898.32x = 399,166,994.22
  5. Step 5: Solve for x
    x = 399,166,994.22/20,898.32
  6. Step 6: Final answer
    x = 19,100.43

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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.