Home / 25,357.86-34,977.24-15,279.48

Finding the Fourth Proportional to 25,357.86, 34,977.24 and 15,279.48

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Solution

The fourth proportional to 25,357.86, 34,977.24 and 15,279.48 is: 21,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,357.86 : 34,977.24 = 15,279.48 : x
  2. Step 2: Convert to fraction form
    25,357.86/34,977.24 = 15,279.48/x
  3. Step 3: Cross multiply
    25,357.86x = 34,977.24 × 15,279.48
  4. Step 4: Simplify right side
    25,357.86x = 534,434,039.04
  5. Step 5: Solve for x
    x = 534,434,039.04/25,357.86
  6. Step 6: Final answer
    x = 21,075.68

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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.