Home / 37,668.40-51,988.20-21,751.60

Finding the Fourth Proportional to 37,668.40, 51,988.20 and 21,751.60

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Solution

The fourth proportional to 37,668.40, 51,988.20 and 21,751.60 is: 30,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,668.40 : 51,988.20 = 21,751.60 : x
  2. Step 2: Convert to fraction form
    37,668.40/51,988.20 = 21,751.60/x
  3. Step 3: Cross multiply
    37,668.40x = 51,988.20 × 21,751.60
  4. Step 4: Simplify right side
    37,668.40x = 1,130,826,531.12
  5. Step 5: Solve for x
    x = 1,130,826,531.12/37,668.40
  6. Step 6: Final answer
    x = 30,020.56

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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.