Home / 20,904.76-28,848.46-11,344.65

Finding the Fourth Proportional to 20,904.76, 28,848.46 and 11,344.65

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Solution

The fourth proportional to 20,904.76, 28,848.46 and 11,344.65 is: 15,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.76 : 28,848.46 = 11,344.65 : x
  2. Step 2: Convert to fraction form
    20,904.76/28,848.46 = 11,344.65/x
  3. Step 3: Cross multiply
    20,904.76x = 28,848.46 × 11,344.65
  4. Step 4: Simplify right side
    20,904.76x = 327,275,681.74
  5. Step 5: Solve for x
    x = 327,275,681.74/20,904.76
  6. Step 6: Final answer
    x = 15,655.56

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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.