Home / 37,485.65-51,728.81-20,489.76

Finding the Fourth Proportional to 37,485.65, 51,728.81 and 20,489.76

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Solution

The fourth proportional to 37,485.65, 51,728.81 and 20,489.76 is: 28,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.65 : 51,728.81 = 20,489.76 : x
  2. Step 2: Convert to fraction form
    37,485.65/51,728.81 = 20,489.76/x
  3. Step 3: Cross multiply
    37,485.65x = 51,728.81 × 20,489.76
  4. Step 4: Simplify right side
    37,485.65x = 1,059,910,799.54
  5. Step 5: Solve for x
    x = 1,059,910,799.54/37,485.65
  6. Step 6: Final answer
    x = 28,275.11

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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.