Home / 25,685.20-35,437.26-15,077.44

Finding the Fourth Proportional to 25,685.20, 35,437.26 and 15,077.44

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Solution

The fourth proportional to 25,685.20, 35,437.26 and 15,077.44 is: 20,801.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.20 : 35,437.26 = 15,077.44 : x
  2. Step 2: Convert to fraction form
    25,685.20/35,437.26 = 15,077.44/x
  3. Step 3: Cross multiply
    25,685.20x = 35,437.26 × 15,077.44
  4. Step 4: Simplify right side
    25,685.20x = 534,303,161.41
  5. Step 5: Solve for x
    x = 534,303,161.41/25,685.20
  6. Step 6: Final answer
    x = 20,801.99

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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.