Home / 54,920.40-82,349.07-21,622.30

Finding the Fourth Proportional to 54,920.40, 82,349.07 and 21,622.30

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Solution

The fourth proportional to 54,920.40, 82,349.07 and 21,622.30 is: 32,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,920.40 : 82,349.07 = 21,622.30 : x
  2. Step 2: Convert to fraction form
    54,920.40/82,349.07 = 21,622.30/x
  3. Step 3: Cross multiply
    54,920.40x = 82,349.07 × 21,622.30
  4. Step 4: Simplify right side
    54,920.40x = 1,780,576,090.39
  5. Step 5: Solve for x
    x = 1,780,576,090.39/54,920.40
  6. Step 6: Final answer
    x = 32,421.03

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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.