Home / 21,455.37-32,175.16-7,411.79

Finding the Fourth Proportional to 21,455.37, 32,175.16 and 7,411.79

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Solution

The fourth proportional to 21,455.37, 32,175.16 and 7,411.79 is: 11,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.37 : 32,175.16 = 7,411.79 : x
  2. Step 2: Convert to fraction form
    21,455.37/32,175.16 = 7,411.79/x
  3. Step 3: Cross multiply
    21,455.37x = 32,175.16 × 7,411.79
  4. Step 4: Simplify right side
    21,455.37x = 238,475,591.04
  5. Step 5: Solve for x
    x = 238,475,591.04/21,455.37
  6. Step 6: Final answer
    x = 11,114.96

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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.