Home / 39,711.03-54,805.73-21,807.60

Finding the Fourth Proportional to 39,711.03, 54,805.73 and 21,807.60

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Solution

The fourth proportional to 39,711.03, 54,805.73 and 21,807.60 is: 30,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.03 : 54,805.73 = 21,807.60 : x
  2. Step 2: Convert to fraction form
    39,711.03/54,805.73 = 21,807.60/x
  3. Step 3: Cross multiply
    39,711.03x = 54,805.73 × 21,807.60
  4. Step 4: Simplify right side
    39,711.03x = 1,195,181,328.51
  5. Step 5: Solve for x
    x = 1,195,181,328.51/39,711.03
  6. Step 6: Final answer
    x = 30,096.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.