Home / 39,704.99-54,792.98-21,801.15

Finding the Fourth Proportional to 39,704.99, 54,792.98 and 21,801.15

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Solution

The fourth proportional to 39,704.99, 54,792.98 and 21,801.15 is: 30,085.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,704.99 : 54,792.98 = 21,801.15 : x
  2. Step 2: Convert to fraction form
    39,704.99/54,792.98 = 21,801.15/x
  3. Step 3: Cross multiply
    39,704.99x = 54,792.98 × 21,801.15
  4. Step 4: Simplify right side
    39,704.99x = 1,194,549,866.92
  5. Step 5: Solve for x
    x = 1,194,549,866.92/39,704.99
  6. Step 6: Final answer
    x = 30,085.64

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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.