Home / 26,788.41-36,996.89-20,890.53

Finding the Fourth Proportional to 26,788.41, 36,996.89 and 20,890.53

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Solution

The fourth proportional to 26,788.41, 36,996.89 and 20,890.53 is: 28,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,788.41 : 36,996.89 = 20,890.53 : x
  2. Step 2: Convert to fraction form
    26,788.41/36,996.89 = 20,890.53/x
  3. Step 3: Cross multiply
    26,788.41x = 36,996.89 × 20,890.53
  4. Step 4: Simplify right side
    26,788.41x = 772,884,536.00
  5. Step 5: Solve for x
    x = 772,884,536.00/26,788.41
  6. Step 6: Final answer
    x = 28,851.45

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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.