Home / 39,219.40-58,731.90-31,443.40

Finding the Fourth Proportional to 39,219.40, 58,731.90 and 31,443.40

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Solution

The fourth proportional to 39,219.40, 58,731.90 and 31,443.40 is: 47,087.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.40 : 58,731.90 = 31,443.40 : x
  2. Step 2: Convert to fraction form
    39,219.40/58,731.90 = 31,443.40/x
  3. Step 3: Cross multiply
    39,219.40x = 58,731.90 × 31,443.40
  4. Step 4: Simplify right side
    39,219.40x = 1,846,730,624.46
  5. Step 5: Solve for x
    x = 1,846,730,624.46/39,219.40
  6. Step 6: Final answer
    x = 47,087.17

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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.