Home / 26,386.08-39,555.84-13,219.68

Finding the Fourth Proportional to 26,386.08, 39,555.84 and 13,219.68

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Solution

The fourth proportional to 26,386.08, 39,555.84 and 13,219.68 is: 19,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,386.08 : 39,555.84 = 13,219.68 : x
  2. Step 2: Convert to fraction form
    26,386.08/39,555.84 = 13,219.68/x
  3. Step 3: Cross multiply
    26,386.08x = 39,555.84 × 13,219.68
  4. Step 4: Simplify right side
    26,386.08x = 522,915,546.93
  5. Step 5: Solve for x
    x = 522,915,546.93/26,386.08
  6. Step 6: Final answer
    x = 19,817.86

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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.