Home / 37,155.84-51,274.88-20,388.48

Finding the Fourth Proportional to 37,155.84, 51,274.88 and 20,388.48

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Solution

The fourth proportional to 37,155.84, 51,274.88 and 20,388.48 is: 28,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,155.84 : 51,274.88 = 20,388.48 : x
  2. Step 2: Convert to fraction form
    37,155.84/51,274.88 = 20,388.48/x
  3. Step 3: Cross multiply
    37,155.84x = 51,274.88 × 20,388.48
  4. Step 4: Simplify right side
    37,155.84x = 1,045,416,865.38
  5. Step 5: Solve for x
    x = 1,045,416,865.38/37,155.84
  6. Step 6: Final answer
    x = 28,136.00

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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.