Home / 20,671.84-28,533.68-11,725.32

Finding the Fourth Proportional to 20,671.84, 28,533.68 and 11,725.32

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Solution

The fourth proportional to 20,671.84, 28,533.68 and 11,725.32 is: 16,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.84 : 28,533.68 = 11,725.32 : x
  2. Step 2: Convert to fraction form
    20,671.84/28,533.68 = 11,725.32/x
  3. Step 3: Cross multiply
    20,671.84x = 28,533.68 × 11,725.32
  4. Step 4: Simplify right side
    20,671.84x = 334,566,528.78
  5. Step 5: Solve for x
    x = 334,566,528.78/20,671.84
  6. Step 6: Final answer
    x = 16,184.65

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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.