Home / 37,130.86-51,240.70-20,135.09

Finding the Fourth Proportional to 37,130.86, 51,240.70 and 20,135.09

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Solution

The fourth proportional to 37,130.86, 51,240.70 and 20,135.09 is: 27,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,130.86 : 51,240.70 = 20,135.09 : x
  2. Step 2: Convert to fraction form
    37,130.86/51,240.70 = 20,135.09/x
  3. Step 3: Cross multiply
    37,130.86x = 51,240.70 × 20,135.09
  4. Step 4: Simplify right side
    37,130.86x = 1,031,736,106.16
  5. Step 5: Solve for x
    x = 1,031,736,106.16/37,130.86
  6. Step 6: Final answer
    x = 27,786.49

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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.