Home / 26,811.35-36,993.71-15,478.38

Finding the Fourth Proportional to 26,811.35, 36,993.71 and 15,478.38

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Solution

The fourth proportional to 26,811.35, 36,993.71 and 15,478.38 is: 21,356.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.35 : 36,993.71 = 15,478.38 : x
  2. Step 2: Convert to fraction form
    26,811.35/36,993.71 = 15,478.38/x
  3. Step 3: Cross multiply
    26,811.35x = 36,993.71 × 15,478.38
  4. Step 4: Simplify right side
    26,811.35x = 572,602,623.60
  5. Step 5: Solve for x
    x = 572,602,623.60/26,811.35
  6. Step 6: Final answer
    x = 21,356.73

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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.