Home / 20,237.65-30,372.06-13,215.76

Finding the Fourth Proportional to 20,237.65, 30,372.06 and 13,215.76

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Solution

The fourth proportional to 20,237.65, 30,372.06 and 13,215.76 is: 19,833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.65 : 30,372.06 = 13,215.76 : x
  2. Step 2: Convert to fraction form
    20,237.65/30,372.06 = 13,215.76/x
  3. Step 3: Cross multiply
    20,237.65x = 30,372.06 × 13,215.76
  4. Step 4: Simplify right side
    20,237.65x = 401,389,829.29
  5. Step 5: Solve for x
    x = 401,389,829.29/20,237.65
  6. Step 6: Final answer
    x = 19,833.82

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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.