Home / 21,483.47-32,215.69-11,485.79

Finding the Fourth Proportional to 21,483.47, 32,215.69 and 11,485.79

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Solution

The fourth proportional to 21,483.47, 32,215.69 and 11,485.79 is: 17,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.47 : 32,215.69 = 11,485.79 : x
  2. Step 2: Convert to fraction form
    21,483.47/32,215.69 = 11,485.79/x
  3. Step 3: Cross multiply
    21,483.47x = 32,215.69 × 11,485.79
  4. Step 4: Simplify right side
    21,483.47x = 370,022,650.05
  5. Step 5: Solve for x
    x = 370,022,650.05/21,483.47
  6. Step 6: Final answer
    x = 17,223.60

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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.