Home / 25,803.30-38,721.40-11,764.72

Finding the Fourth Proportional to 25,803.30, 38,721.40 and 11,764.72

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Solution

The fourth proportional to 25,803.30, 38,721.40 and 11,764.72 is: 17,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.30 : 38,721.40 = 11,764.72 : x
  2. Step 2: Convert to fraction form
    25,803.30/38,721.40 = 11,764.72/x
  3. Step 3: Cross multiply
    25,803.30x = 38,721.40 × 11,764.72
  4. Step 4: Simplify right side
    25,803.30x = 455,546,592.40
  5. Step 5: Solve for x
    x = 455,546,592.40/25,803.30
  6. Step 6: Final answer
    x = 17,654.58

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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.