Home / 25,129.17-34,678.63-13,799.69

Finding the Fourth Proportional to 25,129.17, 34,678.63 and 13,799.69

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Solution

The fourth proportional to 25,129.17, 34,678.63 and 13,799.69 is: 19,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,129.17 : 34,678.63 = 13,799.69 : x
  2. Step 2: Convert to fraction form
    25,129.17/34,678.63 = 13,799.69/x
  3. Step 3: Cross multiply
    25,129.17x = 34,678.63 × 13,799.69
  4. Step 4: Simplify right side
    25,129.17x = 478,554,343.62
  5. Step 5: Solve for x
    x = 478,554,343.62/25,129.17
  6. Step 6: Final answer
    x = 19,043.78

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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.