Home / 25,415.88-35,065.51-15,340.49

Finding the Fourth Proportional to 25,415.88, 35,065.51 and 15,340.49

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Solution

The fourth proportional to 25,415.88, 35,065.51 and 15,340.49 is: 21,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.88 : 35,065.51 = 15,340.49 : x
  2. Step 2: Convert to fraction form
    25,415.88/35,065.51 = 15,340.49/x
  3. Step 3: Cross multiply
    25,415.88x = 35,065.51 × 15,340.49
  4. Step 4: Simplify right side
    25,415.88x = 537,922,023.32
  5. Step 5: Solve for x
    x = 537,922,023.32/25,415.88
  6. Step 6: Final answer
    x = 21,164.80

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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.