Home / 25,468.70-35,145.10-15,402.68

Finding the Fourth Proportional to 25,468.70, 35,145.10 and 15,402.68

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Solution

The fourth proportional to 25,468.70, 35,145.10 and 15,402.68 is: 21,254.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,468.70 : 35,145.10 = 15,402.68 : x
  2. Step 2: Convert to fraction form
    25,468.70/35,145.10 = 15,402.68/x
  3. Step 3: Cross multiply
    25,468.70x = 35,145.10 × 15,402.68
  4. Step 4: Simplify right side
    25,468.70x = 541,328,728.87
  5. Step 5: Solve for x
    x = 541,328,728.87/25,468.70
  6. Step 6: Final answer
    x = 21,254.67

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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.