Home / 28,564.50-39,419.82-15,990.06

Finding the Fourth Proportional to 28,564.50, 39,419.82 and 15,990.06

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Solution

The fourth proportional to 28,564.50, 39,419.82 and 15,990.06 is: 22,066.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.50 : 39,419.82 = 15,990.06 : x
  2. Step 2: Convert to fraction form
    28,564.50/39,419.82 = 15,990.06/x
  3. Step 3: Cross multiply
    28,564.50x = 39,419.82 × 15,990.06
  4. Step 4: Simplify right side
    28,564.50x = 630,325,286.99
  5. Step 5: Solve for x
    x = 630,325,286.99/28,564.50
  6. Step 6: Final answer
    x = 22,066.74

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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.