Home / 37,420.45-51,639.81-20,424.56

Finding the Fourth Proportional to 37,420.45, 51,639.81 and 20,424.56

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Solution

The fourth proportional to 37,420.45, 51,639.81 and 20,424.56 is: 28,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.45 : 51,639.81 = 20,424.56 : x
  2. Step 2: Convert to fraction form
    37,420.45/51,639.81 = 20,424.56/x
  3. Step 3: Cross multiply
    37,420.45x = 51,639.81 × 20,424.56
  4. Step 4: Simplify right side
    37,420.45x = 1,054,720,139.53
  5. Step 5: Solve for x
    x = 1,054,720,139.53/37,420.45
  6. Step 6: Final answer
    x = 28,185.67

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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.