Home / 31,537.18-43,528.89-18,959.50

Finding the Fourth Proportional to 31,537.18, 43,528.89 and 18,959.50

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Solution

The fourth proportional to 31,537.18, 43,528.89 and 18,959.50 is: 26,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,537.18 : 43,528.89 = 18,959.50 : x
  2. Step 2: Convert to fraction form
    31,537.18/43,528.89 = 18,959.50/x
  3. Step 3: Cross multiply
    31,537.18x = 43,528.89 × 18,959.50
  4. Step 4: Simplify right side
    31,537.18x = 825,285,989.96
  5. Step 5: Solve for x
    x = 825,285,989.96/31,537.18
  6. Step 6: Final answer
    x = 26,168.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.