Home / 25,741.69-35,523.80-15,131.50

Finding the Fourth Proportional to 25,741.69, 35,523.80 and 15,131.50

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Solution

The fourth proportional to 25,741.69, 35,523.80 and 15,131.50 is: 20,881.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,741.69 : 35,523.80 = 15,131.50 : x
  2. Step 2: Convert to fraction form
    25,741.69/35,523.80 = 15,131.50/x
  3. Step 3: Cross multiply
    25,741.69x = 35,523.80 × 15,131.50
  4. Step 4: Simplify right side
    25,741.69x = 537,528,379.70
  5. Step 5: Solve for x
    x = 537,528,379.70/25,741.69
  6. Step 6: Final answer
    x = 20,881.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.