Home / 25,880.30-38,781.98-13,383.65

Finding the Fourth Proportional to 25,880.30, 38,781.98 and 13,383.65

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Solution

The fourth proportional to 25,880.30, 38,781.98 and 13,383.65 is: 20,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.30 : 38,781.98 = 13,383.65 : x
  2. Step 2: Convert to fraction form
    25,880.30/38,781.98 = 13,383.65/x
  3. Step 3: Cross multiply
    25,880.30x = 38,781.98 × 13,383.65
  4. Step 4: Simplify right side
    25,880.30x = 519,044,446.63
  5. Step 5: Solve for x
    x = 519,044,446.63/25,880.30
  6. Step 6: Final answer
    x = 20,055.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.