Home / 21,678.25-32,516.65-9,190.24

Finding the Fourth Proportional to 21,678.25, 32,516.65 and 9,190.24

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Solution

The fourth proportional to 21,678.25, 32,516.65 and 9,190.24 is: 13,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678.25 : 32,516.65 = 9,190.24 : x
  2. Step 2: Convert to fraction form
    21,678.25/32,516.65 = 9,190.24/x
  3. Step 3: Cross multiply
    21,678.25x = 32,516.65 × 9,190.24
  4. Step 4: Simplify right side
    21,678.25x = 298,835,817.50
  5. Step 5: Solve for x
    x = 298,835,817.50/21,678.25
  6. Step 6: Final answer
    x = 13,785.05

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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.