Home / 21,350.09-29,476.85-13,807.98

Finding the Fourth Proportional to 21,350.09, 29,476.85 and 13,807.98

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Solution

The fourth proportional to 21,350.09, 29,476.85 and 13,807.98 is: 19,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.09 : 29,476.85 = 13,807.98 : x
  2. Step 2: Convert to fraction form
    21,350.09/29,476.85 = 13,807.98/x
  3. Step 3: Cross multiply
    21,350.09x = 29,476.85 × 13,807.98
  4. Step 4: Simplify right side
    21,350.09x = 407,015,686.22
  5. Step 5: Solve for x
    x = 407,015,686.22/21,350.09
  6. Step 6: Final answer
    x = 19,063.88

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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.