Home / 25,145.56-34,700.63-13,660.71

Finding the Fourth Proportional to 25,145.56, 34,700.63 and 13,660.71

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Solution

The fourth proportional to 25,145.56, 34,700.63 and 13,660.71 is: 18,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.56 : 34,700.63 = 13,660.71 : x
  2. Step 2: Convert to fraction form
    25,145.56/34,700.63 = 13,660.71/x
  3. Step 3: Cross multiply
    25,145.56x = 34,700.63 × 13,660.71
  4. Step 4: Simplify right side
    25,145.56x = 474,035,243.25
  5. Step 5: Solve for x
    x = 474,035,243.25/25,145.56
  6. Step 6: Final answer
    x = 18,851.65

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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.