Home / 25,489.40-38,212.29-9,685.49

Finding the Fourth Proportional to 25,489.40, 38,212.29 and 9,685.49

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Solution

The fourth proportional to 25,489.40, 38,212.29 and 9,685.49 is: 14,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,489.40 : 38,212.29 = 9,685.49 : x
  2. Step 2: Convert to fraction form
    25,489.40/38,212.29 = 9,685.49/x
  3. Step 3: Cross multiply
    25,489.40x = 38,212.29 × 9,685.49
  4. Step 4: Simplify right side
    25,489.40x = 370,104,561.61
  5. Step 5: Solve for x
    x = 370,104,561.61/25,489.40
  6. Step 6: Final answer
    x = 14,519.94

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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.