Home / 26,379.52-39,588.64-21,247.36

Finding the Fourth Proportional to 26,379.52, 39,588.64 and 21,247.36

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Solution

The fourth proportional to 26,379.52, 39,588.64 and 21,247.36 is: 31,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,379.52 : 39,588.64 = 21,247.36 : x
  2. Step 2: Convert to fraction form
    26,379.52/39,588.64 = 21,247.36/x
  3. Step 3: Cross multiply
    26,379.52x = 39,588.64 × 21,247.36
  4. Step 4: Simplify right side
    26,379.52x = 841,154,085.99
  5. Step 5: Solve for x
    x = 841,154,085.99/26,379.52
  6. Step 6: Final answer
    x = 31,886.63

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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.