Home / 25,777.76-38,615.40-16,986.02

Finding the Fourth Proportional to 25,777.76, 38,615.40 and 16,986.02

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Solution

The fourth proportional to 25,777.76, 38,615.40 and 16,986.02 is: 25,445.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,777.76 : 38,615.40 = 16,986.02 : x
  2. Step 2: Convert to fraction form
    25,777.76/38,615.40 = 16,986.02/x
  3. Step 3: Cross multiply
    25,777.76x = 38,615.40 × 16,986.02
  4. Step 4: Simplify right side
    25,777.76x = 655,921,956.71
  5. Step 5: Solve for x
    x = 655,921,956.71/25,777.76
  6. Step 6: Final answer
    x = 25,445.27

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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.