Home / 37,405.59-51,620.80-20,639.67

Finding the Fourth Proportional to 37,405.59, 51,620.80 and 20,639.67

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Solution

The fourth proportional to 37,405.59, 51,620.80 and 20,639.67 is: 28,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405.59 : 51,620.80 = 20,639.67 : x
  2. Step 2: Convert to fraction form
    37,405.59/51,620.80 = 20,639.67/x
  3. Step 3: Cross multiply
    37,405.59x = 51,620.80 × 20,639.67
  4. Step 4: Simplify right side
    37,405.59x = 1,065,436,457.81
  5. Step 5: Solve for x
    x = 1,065,436,457.81/37,405.59
  6. Step 6: Final answer
    x = 28,483.35

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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.