Home / 28,792.64-39,739.74-18,175.16

Finding the Fourth Proportional to 28,792.64, 39,739.74 and 18,175.16

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Solution

The fourth proportional to 28,792.64, 39,739.74 and 18,175.16 is: 25,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792.64 : 39,739.74 = 18,175.16 : x
  2. Step 2: Convert to fraction form
    28,792.64/39,739.74 = 18,175.16/x
  3. Step 3: Cross multiply
    28,792.64x = 39,739.74 × 18,175.16
  4. Step 4: Simplify right side
    28,792.64x = 722,276,132.86
  5. Step 5: Solve for x
    x = 722,276,132.86/28,792.64
  6. Step 6: Final answer
    x = 25,085.44

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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.