Home / 21,322.13-29,429.82-14,527.40

Finding the Fourth Proportional to 21,322.13, 29,429.82 and 14,527.40

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Solution

The fourth proportional to 21,322.13, 29,429.82 and 14,527.40 is: 20,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.13 : 29,429.82 = 14,527.40 : x
  2. Step 2: Convert to fraction form
    21,322.13/29,429.82 = 14,527.40/x
  3. Step 3: Cross multiply
    21,322.13x = 29,429.82 × 14,527.40
  4. Step 4: Simplify right side
    21,322.13x = 427,538,767.07
  5. Step 5: Solve for x
    x = 427,538,767.07/21,322.13
  6. Step 6: Final answer
    x = 20,051.41

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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.