Home / 25,715.41-35,498.81-15,105.71

Finding the Fourth Proportional to 25,715.41, 35,498.81 and 15,105.71

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Solution

The fourth proportional to 25,715.41, 35,498.81 and 15,105.71 is: 20,852.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.41 : 35,498.81 = 15,105.71 : x
  2. Step 2: Convert to fraction form
    25,715.41/35,498.81 = 15,105.71/x
  3. Step 3: Cross multiply
    25,715.41x = 35,498.81 × 15,105.71
  4. Step 4: Simplify right side
    25,715.41x = 536,234,729.21
  5. Step 5: Solve for x
    x = 536,234,729.21/25,715.41
  6. Step 6: Final answer
    x = 20,852.66

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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.