Home / 38,415.80-57,623.70-31,935.80

Finding the Fourth Proportional to 38,415.80, 57,623.70 and 31,935.80

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Solution

The fourth proportional to 38,415.80, 57,623.70 and 31,935.80 is: 47,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.80 : 57,623.70 = 31,935.80 : x
  2. Step 2: Convert to fraction form
    38,415.80/57,623.70 = 31,935.80/x
  3. Step 3: Cross multiply
    38,415.80x = 57,623.70 × 31,935.80
  4. Step 4: Simplify right side
    38,415.80x = 1,840,258,958.46
  5. Step 5: Solve for x
    x = 1,840,258,958.46/38,415.80
  6. Step 6: Final answer
    x = 47,903.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.