Home / 26,555.78-39,858.30-13,417.37

Finding the Fourth Proportional to 26,555.78, 39,858.30 and 13,417.37

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Solution

The fourth proportional to 26,555.78, 39,858.30 and 13,417.37 is: 20,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,555.78 : 39,858.30 = 13,417.37 : x
  2. Step 2: Convert to fraction form
    26,555.78/39,858.30 = 13,417.37/x
  3. Step 3: Cross multiply
    26,555.78x = 39,858.30 × 13,417.37
  4. Step 4: Simplify right side
    26,555.78x = 534,793,558.67
  5. Step 5: Solve for x
    x = 534,793,558.67/26,555.78
  6. Step 6: Final answer
    x = 20,138.50

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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.