Home / 10,821.40-16,231.02-3,030.28

Finding the Fourth Proportional to 10,821.40, 16,231.02 and 3,030.28

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Solution

The fourth proportional to 10,821.40, 16,231.02 and 3,030.28 is: 4,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.40 : 16,231.02 = 3,030.28 : x
  2. Step 2: Convert to fraction form
    10,821.40/16,231.02 = 3,030.28/x
  3. Step 3: Cross multiply
    10,821.40x = 16,231.02 × 3,030.28
  4. Step 4: Simplify right side
    10,821.40x = 49,184,535.29
  5. Step 5: Solve for x
    x = 49,184,535.29/10,821.40
  6. Step 6: Final answer
    x = 4,545.12

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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.