Home / 39,370.40-54,331.73-21,465.71

Finding the Fourth Proportional to 39,370.40, 54,331.73 and 21,465.71

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Solution

The fourth proportional to 39,370.40, 54,331.73 and 21,465.71 is: 29,622.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,370.40 : 54,331.73 = 21,465.71 : x
  2. Step 2: Convert to fraction form
    39,370.40/54,331.73 = 21,465.71/x
  3. Step 3: Cross multiply
    39,370.40x = 54,331.73 × 21,465.71
  4. Step 4: Simplify right side
    39,370.40x = 1,166,268,780.99
  5. Step 5: Solve for x
    x = 1,166,268,780.99/39,370.40
  6. Step 6: Final answer
    x = 29,622.99

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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.