Home / 20,606.48-28,437.56-11,653.81

Finding the Fourth Proportional to 20,606.48, 28,437.56 and 11,653.81

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Solution

The fourth proportional to 20,606.48, 28,437.56 and 11,653.81 is: 16,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.48 : 28,437.56 = 11,653.81 : x
  2. Step 2: Convert to fraction form
    20,606.48/28,437.56 = 11,653.81/x
  3. Step 3: Cross multiply
    20,606.48x = 28,437.56 × 11,653.81
  4. Step 4: Simplify right side
    20,606.48x = 331,405,901.00
  5. Step 5: Solve for x
    x = 331,405,901.00/20,606.48
  6. Step 6: Final answer
    x = 16,082.60

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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.