Home / 47,905.70-71,867.21-19,810.50

Finding the Fourth Proportional to 47,905.70, 71,867.21 and 19,810.50

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Solution

The fourth proportional to 47,905.70, 71,867.21 and 19,810.50 is: 29,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905.70 : 71,867.21 = 19,810.50 : x
  2. Step 2: Convert to fraction form
    47,905.70/71,867.21 = 19,810.50/x
  3. Step 3: Cross multiply
    47,905.70x = 71,867.21 × 19,810.50
  4. Step 4: Simplify right side
    47,905.70x = 1,423,724,995.15
  5. Step 5: Solve for x
    x = 1,423,724,995.15/47,905.70
  6. Step 6: Final answer
    x = 29,719.33

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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.