Home / 28,125.81-42,146.96-11,465.46

Finding the Fourth Proportional to 28,125.81, 42,146.96 and 11,465.46

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Solution

The fourth proportional to 28,125.81, 42,146.96 and 11,465.46 is: 17,181.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.81 : 42,146.96 = 11,465.46 : x
  2. Step 2: Convert to fraction form
    28,125.81/42,146.96 = 11,465.46/x
  3. Step 3: Cross multiply
    28,125.81x = 42,146.96 × 11,465.46
  4. Step 4: Simplify right side
    28,125.81x = 483,234,226.67
  5. Step 5: Solve for x
    x = 483,234,226.67/28,125.81
  6. Step 6: Final answer
    x = 17,181.17

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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.