Home / 21,533.58-29,698.52-15,181.29

Finding the Fourth Proportional to 21,533.58, 29,698.52 and 15,181.29

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Solution

The fourth proportional to 21,533.58, 29,698.52 and 15,181.29 is: 20,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.58 : 29,698.52 = 15,181.29 : x
  2. Step 2: Convert to fraction form
    21,533.58/29,698.52 = 15,181.29/x
  3. Step 3: Cross multiply
    21,533.58x = 29,698.52 × 15,181.29
  4. Step 4: Simplify right side
    21,533.58x = 450,861,768.78
  5. Step 5: Solve for x
    x = 450,861,768.78/21,533.58
  6. Step 6: Final answer
    x = 20,937.61

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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.