Home / 39,382.70-54,347.46-21,477.74

Finding the Fourth Proportional to 39,382.70, 54,347.46 and 21,477.74

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Solution

The fourth proportional to 39,382.70, 54,347.46 and 21,477.74 is: 29,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,382.70 : 54,347.46 = 21,477.74 : x
  2. Step 2: Convert to fraction form
    39,382.70/54,347.46 = 21,477.74/x
  3. Step 3: Cross multiply
    39,382.70x = 54,347.46 × 21,477.74
  4. Step 4: Simplify right side
    39,382.70x = 1,167,260,615.54
  5. Step 5: Solve for x
    x = 1,167,260,615.54/39,382.70
  6. Step 6: Final answer
    x = 29,638.92

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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.