Home / 45,015.81-67,523.64-13,851.06

Finding the Fourth Proportional to 45,015.81, 67,523.64 and 13,851.06

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Solution

The fourth proportional to 45,015.81, 67,523.64 and 13,851.06 is: 20,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,015.81 : 67,523.64 = 13,851.06 : x
  2. Step 2: Convert to fraction form
    45,015.81/67,523.64 = 13,851.06/x
  3. Step 3: Cross multiply
    45,015.81x = 67,523.64 × 13,851.06
  4. Step 4: Simplify right side
    45,015.81x = 935,273,989.06
  5. Step 5: Solve for x
    x = 935,273,989.06/45,015.81
  6. Step 6: Final answer
    x = 20,776.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.