Home / 39,381.45-54,347.84-22,388.56

Finding the Fourth Proportional to 39,381.45, 54,347.84 and 22,388.56

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Solution

The fourth proportional to 39,381.45, 54,347.84 and 22,388.56 is: 30,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,381.45 : 54,347.84 = 22,388.56 : x
  2. Step 2: Convert to fraction form
    39,381.45/54,347.84 = 22,388.56/x
  3. Step 3: Cross multiply
    39,381.45x = 54,347.84 × 22,388.56
  4. Step 4: Simplify right side
    39,381.45x = 1,216,769,876.71
  5. Step 5: Solve for x
    x = 1,216,769,876.71/39,381.45
  6. Step 6: Final answer
    x = 30,897.03

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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.