Home / 25,864.80-38,768.40-11,071.20

Finding the Fourth Proportional to 25,864.80, 38,768.40 and 11,071.20

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Solution

The fourth proportional to 25,864.80, 38,768.40 and 11,071.20 is: 16,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,864.80 : 38,768.40 = 11,071.20 : x
  2. Step 2: Convert to fraction form
    25,864.80/38,768.40 = 11,071.20/x
  3. Step 3: Cross multiply
    25,864.80x = 38,768.40 × 11,071.20
  4. Step 4: Simplify right side
    25,864.80x = 429,212,710.08
  5. Step 5: Solve for x
    x = 429,212,710.08/25,864.80
  6. Step 6: Final answer
    x = 16,594.47

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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.