Home / 25,209.51-34,787.76-13,876.80

Finding the Fourth Proportional to 25,209.51, 34,787.76 and 13,876.80

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Solution

The fourth proportional to 25,209.51, 34,787.76 and 13,876.80 is: 19,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,209.51 : 34,787.76 = 13,876.80 : x
  2. Step 2: Convert to fraction form
    25,209.51/34,787.76 = 13,876.80/x
  3. Step 3: Cross multiply
    25,209.51x = 34,787.76 × 13,876.80
  4. Step 4: Simplify right side
    25,209.51x = 482,742,787.97
  5. Step 5: Solve for x
    x = 482,742,787.97/25,209.51
  6. Step 6: Final answer
    x = 19,149.23

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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.