Home / 37,485.40-51,731.24-20,490.79

Finding the Fourth Proportional to 37,485.40, 51,731.24 and 20,490.79

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Solution

The fourth proportional to 37,485.40, 51,731.24 and 20,490.79 is: 28,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.40 : 51,731.24 = 20,490.79 : x
  2. Step 2: Convert to fraction form
    37,485.40/51,731.24 = 20,490.79/x
  3. Step 3: Cross multiply
    37,485.40x = 51,731.24 × 20,490.79
  4. Step 4: Simplify right side
    37,485.40x = 1,060,013,975.28
  5. Step 5: Solve for x
    x = 1,060,013,975.28/37,485.40
  6. Step 6: Final answer
    x = 28,278.05

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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.