Home / 25,667.84-35,422.20-15,065.12

Finding the Fourth Proportional to 25,667.84, 35,422.20 and 15,065.12

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Solution

The fourth proportional to 25,667.84, 35,422.20 and 15,065.12 is: 20,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.84 : 35,422.20 = 15,065.12 : x
  2. Step 2: Convert to fraction form
    25,667.84/35,422.20 = 15,065.12/x
  3. Step 3: Cross multiply
    25,667.84x = 35,422.20 × 15,065.12
  4. Step 4: Simplify right side
    25,667.84x = 533,639,693.66
  5. Step 5: Solve for x
    x = 533,639,693.66/25,667.84
  6. Step 6: Final answer
    x = 20,790.21

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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.