Home / 21,639.04-32,462.40-7,786.24

Finding the Fourth Proportional to 21,639.04, 32,462.40 and 7,786.24

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Solution

The fourth proportional to 21,639.04, 32,462.40 and 7,786.24 is: 11,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.04 : 32,462.40 = 7,786.24 : x
  2. Step 2: Convert to fraction form
    21,639.04/32,462.40 = 7,786.24/x
  3. Step 3: Cross multiply
    21,639.04x = 32,462.40 × 7,786.24
  4. Step 4: Simplify right side
    21,639.04x = 252,760,037.38
  5. Step 5: Solve for x
    x = 252,760,037.38/21,639.04
  6. Step 6: Final answer
    x = 11,680.74

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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.