Home / 26,428.68-39,630.47-15,338.77

Finding the Fourth Proportional to 26,428.68, 39,630.47 and 15,338.77

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Solution

The fourth proportional to 26,428.68, 39,630.47 and 15,338.77 is: 23,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,428.68 : 39,630.47 = 15,338.77 : x
  2. Step 2: Convert to fraction form
    26,428.68/39,630.47 = 15,338.77/x
  3. Step 3: Cross multiply
    26,428.68x = 39,630.47 × 15,338.77
  4. Step 4: Simplify right side
    26,428.68x = 607,882,488.55
  5. Step 5: Solve for x
    x = 607,882,488.55/26,428.68
  6. Step 6: Final answer
    x = 23,000.86

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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.