Home / 39,379.60-54,341.89-22,381.60

Finding the Fourth Proportional to 39,379.60, 54,341.89 and 22,381.60

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Solution

The fourth proportional to 39,379.60, 54,341.89 and 22,381.60 is: 30,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379.60 : 54,341.89 = 22,381.60 : x
  2. Step 2: Convert to fraction form
    39,379.60/54,341.89 = 22,381.60/x
  3. Step 3: Cross multiply
    39,379.60x = 54,341.89 × 22,381.60
  4. Step 4: Simplify right side
    39,379.60x = 1,216,258,355.31
  5. Step 5: Solve for x
    x = 1,216,258,355.31/39,379.60
  6. Step 6: Final answer
    x = 30,885.49

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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.