Home / 37,637.09-51,939.10-21,721.53

Finding the Fourth Proportional to 37,637.09, 51,939.10 and 21,721.53

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Solution

The fourth proportional to 37,637.09, 51,939.10 and 21,721.53 is: 29,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,637.09 : 51,939.10 = 21,721.53 : x
  2. Step 2: Convert to fraction form
    37,637.09/51,939.10 = 21,721.53/x
  3. Step 3: Cross multiply
    37,637.09x = 51,939.10 × 21,721.53
  4. Step 4: Simplify right side
    37,637.09x = 1,128,196,664.52
  5. Step 5: Solve for x
    x = 1,128,196,664.52/37,637.09
  6. Step 6: Final answer
    x = 29,975.67

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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.