Home / 31,084.56-46,631.70-19,478.88

Finding the Fourth Proportional to 31,084.56, 46,631.70 and 19,478.88

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Solution

The fourth proportional to 31,084.56, 46,631.70 and 19,478.88 is: 29,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,084.56 : 46,631.70 = 19,478.88 : x
  2. Step 2: Convert to fraction form
    31,084.56/46,631.70 = 19,478.88/x
  3. Step 3: Cross multiply
    31,084.56x = 46,631.70 × 19,478.88
  4. Step 4: Simplify right side
    31,084.56x = 908,333,288.50
  5. Step 5: Solve for x
    x = 908,333,288.50/31,084.56
  6. Step 6: Final answer
    x = 29,221.37

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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.