Home / 26,031.45-39,006.28-20,122.81

Finding the Fourth Proportional to 26,031.45, 39,006.28 and 20,122.81

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Solution

The fourth proportional to 26,031.45, 39,006.28 and 20,122.81 is: 30,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,031.45 : 39,006.28 = 20,122.81 : x
  2. Step 2: Convert to fraction form
    26,031.45/39,006.28 = 20,122.81/x
  3. Step 3: Cross multiply
    26,031.45x = 39,006.28 × 20,122.81
  4. Step 4: Simplify right side
    26,031.45x = 784,915,961.25
  5. Step 5: Solve for x
    x = 784,915,961.25/26,031.45
  6. Step 6: Final answer
    x = 30,152.60

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1.5x scale

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.