Home / 28,005.06-42,016.50-8,283.72

Finding the Fourth Proportional to 28,005.06, 42,016.50 and 8,283.72

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Solution

The fourth proportional to 28,005.06, 42,016.50 and 8,283.72 is: 12,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.06 : 42,016.50 = 8,283.72 : x
  2. Step 2: Convert to fraction form
    28,005.06/42,016.50 = 8,283.72/x
  3. Step 3: Cross multiply
    28,005.06x = 42,016.50 × 8,283.72
  4. Step 4: Simplify right side
    28,005.06x = 348,052,921.38
  5. Step 5: Solve for x
    x = 348,052,921.38/28,005.06
  6. Step 6: Final answer
    x = 12,428.22

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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.