Home / 37,405.50-51,620.67-20,639.58

Finding the Fourth Proportional to 37,405.50, 51,620.67 and 20,639.58

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Solution

The fourth proportional to 37,405.50, 51,620.67 and 20,639.58 is: 28,483.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405.50 : 51,620.67 = 20,639.58 : x
  2. Step 2: Convert to fraction form
    37,405.50/51,620.67 = 20,639.58/x
  3. Step 3: Cross multiply
    37,405.50x = 51,620.67 × 20,639.58
  4. Step 4: Simplify right side
    37,405.50x = 1,065,428,948.12
  5. Step 5: Solve for x
    x = 1,065,428,948.12/37,405.50
  6. Step 6: Final answer
    x = 28,483.22

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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.