Home / 28,459.26-42,688.80-7,682.76

Finding the Fourth Proportional to 28,459.26, 42,688.80 and 7,682.76

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Solution

The fourth proportional to 28,459.26, 42,688.80 and 7,682.76 is: 11,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.26 : 42,688.80 = 7,682.76 : x
  2. Step 2: Convert to fraction form
    28,459.26/42,688.80 = 7,682.76/x
  3. Step 3: Cross multiply
    28,459.26x = 42,688.80 × 7,682.76
  4. Step 4: Simplify right side
    28,459.26x = 327,967,805.09
  5. Step 5: Solve for x
    x = 327,967,805.09/28,459.26
  6. Step 6: Final answer
    x = 11,524.12

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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.