Home / 25,218.80-37,777.24-12,721.44

Finding the Fourth Proportional to 25,218.80, 37,777.24 and 12,721.44

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Solution

The fourth proportional to 25,218.80, 37,777.24 and 12,721.44 is: 19,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,218.80 : 37,777.24 = 12,721.44 : x
  2. Step 2: Convert to fraction form
    25,218.80/37,777.24 = 12,721.44/x
  3. Step 3: Cross multiply
    25,218.80x = 37,777.24 × 12,721.44
  4. Step 4: Simplify right side
    25,218.80x = 480,580,892.03
  5. Step 5: Solve for x
    x = 480,580,892.03/25,218.80
  6. Step 6: Final answer
    x = 19,056.45

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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.