Home / 37,048.38-51,128.04-20,281.38

Finding the Fourth Proportional to 37,048.38, 51,128.04 and 20,281.38

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Solution

The fourth proportional to 37,048.38, 51,128.04 and 20,281.38 is: 27,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,048.38 : 51,128.04 = 20,281.38 : x
  2. Step 2: Convert to fraction form
    37,048.38/51,128.04 = 20,281.38/x
  3. Step 3: Cross multiply
    37,048.38x = 51,128.04 × 20,281.38
  4. Step 4: Simplify right side
    37,048.38x = 1,036,947,207.90
  5. Step 5: Solve for x
    x = 1,036,947,207.90/37,048.38
  6. Step 6: Final answer
    x = 27,989.00

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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.