Home / 26,421.28-39,594.94-18,990.88

Finding the Fourth Proportional to 26,421.28, 39,594.94 and 18,990.88

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Solution

The fourth proportional to 26,421.28, 39,594.94 and 18,990.88 is: 28,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,421.28 : 39,594.94 = 18,990.88 : x
  2. Step 2: Convert to fraction form
    26,421.28/39,594.94 = 18,990.88/x
  3. Step 3: Cross multiply
    26,421.28x = 39,594.94 × 18,990.88
  4. Step 4: Simplify right side
    26,421.28x = 751,942,754.15
  5. Step 5: Solve for x
    x = 751,942,754.15/26,421.28
  6. Step 6: Final answer
    x = 28,459.74

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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.