Home / 57,899.04-86,858.90-20,480.82

Finding the Fourth Proportional to 57,899.04, 86,858.90 and 20,480.82

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Solution

The fourth proportional to 57,899.04, 86,858.90 and 20,480.82 is: 30,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,899.04 : 86,858.90 = 20,480.82 : x
  2. Step 2: Convert to fraction form
    57,899.04/86,858.90 = 20,480.82/x
  3. Step 3: Cross multiply
    57,899.04x = 86,858.90 × 20,480.82
  4. Step 4: Simplify right side
    57,899.04x = 1,778,941,496.30
  5. Step 5: Solve for x
    x = 1,778,941,496.30/57,899.04
  6. Step 6: Final answer
    x = 30,724.89

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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.