Home / 26,399.16-36,429.76-15,782.52

Finding the Fourth Proportional to 26,399.16, 36,429.76 and 15,782.52

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Solution

The fourth proportional to 26,399.16, 36,429.76 and 15,782.52 is: 21,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,399.16 : 36,429.76 = 15,782.52 : x
  2. Step 2: Convert to fraction form
    26,399.16/36,429.76 = 15,782.52/x
  3. Step 3: Cross multiply
    26,399.16x = 36,429.76 × 15,782.52
  4. Step 4: Simplify right side
    26,399.16x = 574,953,415.80
  5. Step 5: Solve for x
    x = 574,953,415.80/26,399.16
  6. Step 6: Final answer
    x = 21,779.23

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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.