Home / 25,908.37-38,830.59-13,421.21

Finding the Fourth Proportional to 25,908.37, 38,830.59 and 13,421.21

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Solution

The fourth proportional to 25,908.37, 38,830.59 and 13,421.21 is: 20,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,908.37 : 38,830.59 = 13,421.21 : x
  2. Step 2: Convert to fraction form
    25,908.37/38,830.59 = 13,421.21/x
  3. Step 3: Cross multiply
    25,908.37x = 38,830.59 × 13,421.21
  4. Step 4: Simplify right side
    25,908.37x = 521,153,527.08
  5. Step 5: Solve for x
    x = 521,153,527.08/25,908.37
  6. Step 6: Final answer
    x = 20,115.25

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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.