Home / 25,860.20-38,741.70-13,337.60

Finding the Fourth Proportional to 25,860.20, 38,741.70 and 13,337.60

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Solution

The fourth proportional to 25,860.20, 38,741.70 and 13,337.60 is: 19,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.20 : 38,741.70 = 13,337.60 : x
  2. Step 2: Convert to fraction form
    25,860.20/38,741.70 = 13,337.60/x
  3. Step 3: Cross multiply
    25,860.20x = 38,741.70 × 13,337.60
  4. Step 4: Simplify right side
    25,860.20x = 516,721,297.92
  5. Step 5: Solve for x
    x = 516,721,297.92/25,860.20
  6. Step 6: Final answer
    x = 19,981.33

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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.