Home / 25,142.47-34,694.94-13,809.76

Finding the Fourth Proportional to 25,142.47, 34,694.94 and 13,809.76

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Solution

The fourth proportional to 25,142.47, 34,694.94 and 13,809.76 is: 19,056.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,142.47 : 34,694.94 = 13,809.76 : x
  2. Step 2: Convert to fraction form
    25,142.47/34,694.94 = 13,809.76/x
  3. Step 3: Cross multiply
    25,142.47x = 34,694.94 × 13,809.76
  4. Step 4: Simplify right side
    25,142.47x = 479,128,794.61
  5. Step 5: Solve for x
    x = 479,128,794.61/25,142.47
  6. Step 6: Final answer
    x = 19,056.55

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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.