Home / 26,778.20-36,953.28-15,447.69

Finding the Fourth Proportional to 26,778.20, 36,953.28 and 15,447.69

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Solution

The fourth proportional to 26,778.20, 36,953.28 and 15,447.69 is: 21,317.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,778.20 : 36,953.28 = 15,447.69 : x
  2. Step 2: Convert to fraction form
    26,778.20/36,953.28 = 15,447.69/x
  3. Step 3: Cross multiply
    26,778.20x = 36,953.28 × 15,447.69
  4. Step 4: Simplify right side
    26,778.20x = 570,842,813.92
  5. Step 5: Solve for x
    x = 570,842,813.92/26,778.20
  6. Step 6: Final answer
    x = 21,317.45

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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.