Home / 26,668.60-36,837.78-20,457.64

Finding the Fourth Proportional to 26,668.60, 36,837.78 and 20,457.64

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Solution

The fourth proportional to 26,668.60, 36,837.78 and 20,457.64 is: 28,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,668.60 : 36,837.78 = 20,457.64 : x
  2. Step 2: Convert to fraction form
    26,668.60/36,837.78 = 20,457.64/x
  3. Step 3: Cross multiply
    26,668.60x = 36,837.78 × 20,457.64
  4. Step 4: Simplify right side
    26,668.60x = 753,614,041.64
  5. Step 5: Solve for x
    x = 753,614,041.64/26,668.60
  6. Step 6: Final answer
    x = 28,258.48

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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.