Home / 39,683.12-54,764.30-22,690.13

Finding the Fourth Proportional to 39,683.12, 54,764.30 and 22,690.13

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Solution

The fourth proportional to 39,683.12, 54,764.30 and 22,690.13 is: 31,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,683.12 : 54,764.30 = 22,690.13 : x
  2. Step 2: Convert to fraction form
    39,683.12/54,764.30 = 22,690.13/x
  3. Step 3: Cross multiply
    39,683.12x = 54,764.30 × 22,690.13
  4. Step 4: Simplify right side
    39,683.12x = 1,242,608,869.26
  5. Step 5: Solve for x
    x = 1,242,608,869.26/39,683.12
  6. Step 6: Final answer
    x = 31,313.29

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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.