Home / 21,487.84-29,654.16-13,527.04

Finding the Fourth Proportional to 21,487.84, 29,654.16 and 13,527.04

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Solution

The fourth proportional to 21,487.84, 29,654.16 and 13,527.04 is: 18,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.84 : 29,654.16 = 13,527.04 : x
  2. Step 2: Convert to fraction form
    21,487.84/29,654.16 = 13,527.04/x
  3. Step 3: Cross multiply
    21,487.84x = 29,654.16 × 13,527.04
  4. Step 4: Simplify right side
    21,487.84x = 401,133,008.49
  5. Step 5: Solve for x
    x = 401,133,008.49/21,487.84
  6. Step 6: Final answer
    x = 18,667.91

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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.