Home / 21,503.85-29,674.92-11,943.75

Finding the Fourth Proportional to 21,503.85, 29,674.92 and 11,943.75

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Solution

The fourth proportional to 21,503.85, 29,674.92 and 11,943.75 is: 16,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.85 : 29,674.92 = 11,943.75 : x
  2. Step 2: Convert to fraction form
    21,503.85/29,674.92 = 11,943.75/x
  3. Step 3: Cross multiply
    21,503.85x = 29,674.92 × 11,943.75
  4. Step 4: Simplify right side
    21,503.85x = 354,429,825.75
  5. Step 5: Solve for x
    x = 354,429,825.75/21,503.85
  6. Step 6: Final answer
    x = 16,482.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.