Home / 19,966.16-27,524.67-15,709.88

Finding the Fourth Proportional to 19,966.16, 27,524.67 and 15,709.88

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Solution

The fourth proportional to 19,966.16, 27,524.67 and 15,709.88 is: 21,657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.16 : 27,524.67 = 15,709.88 : x
  2. Step 2: Convert to fraction form
    19,966.16/27,524.67 = 15,709.88/x
  3. Step 3: Cross multiply
    19,966.16x = 27,524.67 × 15,709.88
  4. Step 4: Simplify right side
    19,966.16x = 432,409,125.12
  5. Step 5: Solve for x
    x = 432,409,125.12/19,966.16
  6. Step 6: Final answer
    x = 21,657.11

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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.