Home / 25,153.84-34,709.51-15,082.71

Finding the Fourth Proportional to 25,153.84, 34,709.51 and 15,082.71

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Solution

The fourth proportional to 25,153.84, 34,709.51 and 15,082.71 is: 20,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,153.84 : 34,709.51 = 15,082.71 : x
  2. Step 2: Convert to fraction form
    25,153.84/34,709.51 = 15,082.71/x
  3. Step 3: Cross multiply
    25,153.84x = 34,709.51 × 15,082.71
  4. Step 4: Simplify right side
    25,153.84x = 523,513,381.12
  5. Step 5: Solve for x
    x = 523,513,381.12/25,153.84
  6. Step 6: Final answer
    x = 20,812.46

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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.