Home / 25,777.80-38,678.88-14,090.64

Finding the Fourth Proportional to 25,777.80, 38,678.88 and 14,090.64

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Solution

The fourth proportional to 25,777.80, 38,678.88 and 14,090.64 is: 21,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,777.80 : 38,678.88 = 14,090.64 : x
  2. Step 2: Convert to fraction form
    25,777.80/38,678.88 = 14,090.64/x
  3. Step 3: Cross multiply
    25,777.80x = 38,678.88 × 14,090.64
  4. Step 4: Simplify right side
    25,777.80x = 545,010,173.68
  5. Step 5: Solve for x
    x = 545,010,173.68/25,777.80
  6. Step 6: Final answer
    x = 21,142.62

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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.