Home / 28,200.53-42,300.84-11,557.58

Finding the Fourth Proportional to 28,200.53, 42,300.84 and 11,557.58

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Solution

The fourth proportional to 28,200.53, 42,300.84 and 11,557.58 is: 17,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.53 : 42,300.84 = 11,557.58 : x
  2. Step 2: Convert to fraction form
    28,200.53/42,300.84 = 11,557.58/x
  3. Step 3: Cross multiply
    28,200.53x = 42,300.84 × 11,557.58
  4. Step 4: Simplify right side
    28,200.53x = 488,895,289.49
  5. Step 5: Solve for x
    x = 488,895,289.49/28,200.53
  6. Step 6: Final answer
    x = 17,336.39

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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.