Home / 21,740.27-32,568.93-11,720.16

Finding the Fourth Proportional to 21,740.27, 32,568.93 and 11,720.16

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Solution

The fourth proportional to 21,740.27, 32,568.93 and 11,720.16 is: 17,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.27 : 32,568.93 = 11,720.16 : x
  2. Step 2: Convert to fraction form
    21,740.27/32,568.93 = 11,720.16/x
  3. Step 3: Cross multiply
    21,740.27x = 32,568.93 × 11,720.16
  4. Step 4: Simplify right side
    21,740.27x = 381,713,070.63
  5. Step 5: Solve for x
    x = 381,713,070.63/21,740.27
  6. Step 6: Final answer
    x = 17,557.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.