Home / 39,340.92-54,290.48-21,435.93

Finding the Fourth Proportional to 39,340.92, 54,290.48 and 21,435.93

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Solution

The fourth proportional to 39,340.92, 54,290.48 and 21,435.93 is: 29,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,340.92 : 54,290.48 = 21,435.93 : x
  2. Step 2: Convert to fraction form
    39,340.92/54,290.48 = 21,435.93/x
  3. Step 3: Cross multiply
    39,340.92x = 54,290.48 × 21,435.93
  4. Step 4: Simplify right side
    39,340.92x = 1,163,766,821.77
  5. Step 5: Solve for x
    x = 1,163,766,821.77/39,340.92
  6. Step 6: Final answer
    x = 29,581.59

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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.