Home / 37,637.28-51,940.40-20,642.20

Finding the Fourth Proportional to 37,637.28, 51,940.40 and 20,642.20

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Solution

The fourth proportional to 37,637.28, 51,940.40 and 20,642.20 is: 28,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,637.28 : 51,940.40 = 20,642.20 : x
  2. Step 2: Convert to fraction form
    37,637.28/51,940.40 = 20,642.20/x
  3. Step 3: Cross multiply
    37,637.28x = 51,940.40 × 20,642.20
  4. Step 4: Simplify right side
    37,637.28x = 1,072,164,124.88
  5. Step 5: Solve for x
    x = 1,072,164,124.88/37,637.28
  6. Step 6: Final answer
    x = 28,486.76

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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.