Home / 21,454.07-29,597.99-13,382.96

Finding the Fourth Proportional to 21,454.07, 29,597.99 and 13,382.96

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Solution

The fourth proportional to 21,454.07, 29,597.99 and 13,382.96 is: 18,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.07 : 29,597.99 = 13,382.96 : x
  2. Step 2: Convert to fraction form
    21,454.07/29,597.99 = 13,382.96/x
  3. Step 3: Cross multiply
    21,454.07x = 29,597.99 × 13,382.96
  4. Step 4: Simplify right side
    21,454.07x = 396,108,501.35
  5. Step 5: Solve for x
    x = 396,108,501.35/21,454.07
  6. Step 6: Final answer
    x = 18,463.10

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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.