Home / 20,606.56-28,437.54-12,537.44

Finding the Fourth Proportional to 20,606.56, 28,437.54 and 12,537.44

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Solution

The fourth proportional to 20,606.56, 28,437.54 and 12,537.44 is: 17,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.56 : 28,437.54 = 12,537.44 : x
  2. Step 2: Convert to fraction form
    20,606.56/28,437.54 = 12,537.44/x
  3. Step 3: Cross multiply
    20,606.56x = 28,437.54 × 12,537.44
  4. Step 4: Simplify right side
    20,606.56x = 356,533,951.50
  5. Step 5: Solve for x
    x = 356,533,951.50/20,606.56
  6. Step 6: Final answer
    x = 17,301.96

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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.