Home / 20,293.16-28,022.40-12,752.60

Finding the Fourth Proportional to 20,293.16, 28,022.40 and 12,752.60

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Solution

The fourth proportional to 20,293.16, 28,022.40 and 12,752.60 is: 17,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.16 : 28,022.40 = 12,752.60 : x
  2. Step 2: Convert to fraction form
    20,293.16/28,022.40 = 12,752.60/x
  3. Step 3: Cross multiply
    20,293.16x = 28,022.40 × 12,752.60
  4. Step 4: Simplify right side
    20,293.16x = 357,358,458.24
  5. Step 5: Solve for x
    x = 357,358,458.24/20,293.16
  6. Step 6: Final answer
    x = 17,609.80

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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.