Home / 21,039.87-29,045.54-13,084.66

Finding the Fourth Proportional to 21,039.87, 29,045.54 and 13,084.66

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Solution

The fourth proportional to 21,039.87, 29,045.54 and 13,084.66 is: 18,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.87 : 29,045.54 = 13,084.66 : x
  2. Step 2: Convert to fraction form
    21,039.87/29,045.54 = 13,084.66/x
  3. Step 3: Cross multiply
    21,039.87x = 29,045.54 × 13,084.66
  4. Step 4: Simplify right side
    21,039.87x = 380,050,975.51
  5. Step 5: Solve for x
    x = 380,050,975.51/21,039.87
  6. Step 6: Final answer
    x = 18,063.37

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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.