Home / 21,936.63-32,904.15-7,145.16

Finding the Fourth Proportional to 21,936.63, 32,904.15 and 7,145.16

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Solution

The fourth proportional to 21,936.63, 32,904.15 and 7,145.16 is: 10,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.63 : 32,904.15 = 7,145.16 : x
  2. Step 2: Convert to fraction form
    21,936.63/32,904.15 = 7,145.16/x
  3. Step 3: Cross multiply
    21,936.63x = 32,904.15 × 7,145.16
  4. Step 4: Simplify right side
    21,936.63x = 235,105,416.41
  5. Step 5: Solve for x
    x = 235,105,416.41/21,936.63
  6. Step 6: Final answer
    x = 10,717.48

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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.