Home / 20,746.02-28,629.64-11,314.38

Finding the Fourth Proportional to 20,746.02, 28,629.64 and 11,314.38

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Solution

The fourth proportional to 20,746.02, 28,629.64 and 11,314.38 is: 15,613.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.02 : 28,629.64 = 11,314.38 : x
  2. Step 2: Convert to fraction form
    20,746.02/28,629.64 = 11,314.38/x
  3. Step 3: Cross multiply
    20,746.02x = 28,629.64 × 11,314.38
  4. Step 4: Simplify right side
    20,746.02x = 323,926,626.22
  5. Step 5: Solve for x
    x = 323,926,626.22/20,746.02
  6. Step 6: Final answer
    x = 15,613.92

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Double scale
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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.