Home / 28,330.85-42,459.32-11,674.11

Finding the Fourth Proportional to 28,330.85, 42,459.32 and 11,674.11

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Solution

The fourth proportional to 28,330.85, 42,459.32 and 11,674.11 is: 17,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.85 : 42,459.32 = 11,674.11 : x
  2. Step 2: Convert to fraction form
    28,330.85/42,459.32 = 11,674.11/x
  3. Step 3: Cross multiply
    28,330.85x = 42,459.32 × 11,674.11
  4. Step 4: Simplify right side
    28,330.85x = 495,674,713.83
  5. Step 5: Solve for x
    x = 495,674,713.83/28,330.85
  6. Step 6: Final answer
    x = 17,495.94

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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.