Home / 25,262.12-34,861.68-13,931.28

Finding the Fourth Proportional to 25,262.12, 34,861.68 and 13,931.28

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Solution

The fourth proportional to 25,262.12, 34,861.68 and 13,931.28 is: 19,225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,262.12 : 34,861.68 = 13,931.28 : x
  2. Step 2: Convert to fraction form
    25,262.12/34,861.68 = 13,931.28/x
  3. Step 3: Cross multiply
    25,262.12x = 34,861.68 × 13,931.28
  4. Step 4: Simplify right side
    25,262.12x = 485,667,825.35
  5. Step 5: Solve for x
    x = 485,667,825.35/25,262.12
  6. Step 6: Final answer
    x = 19,225.14

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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.