Home / 31,870.44-47,799.36-30,289.92

Finding the Fourth Proportional to 31,870.44, 47,799.36 and 30,289.92

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Solution

The fourth proportional to 31,870.44, 47,799.36 and 30,289.92 is: 45,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,870.44 : 47,799.36 = 30,289.92 : x
  2. Step 2: Convert to fraction form
    31,870.44/47,799.36 = 30,289.92/x
  3. Step 3: Cross multiply
    31,870.44x = 47,799.36 × 30,289.92
  4. Step 4: Simplify right side
    31,870.44x = 1,447,838,790.45
  5. Step 5: Solve for x
    x = 1,447,838,790.45/31,870.44
  6. Step 6: Final answer
    x = 45,428.89

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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.