Home / 28,071.42-38,738.63-15,324.62

Finding the Fourth Proportional to 28,071.42, 38,738.63 and 15,324.62

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Solution

The fourth proportional to 28,071.42, 38,738.63 and 15,324.62 is: 21,148.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.42 : 38,738.63 = 15,324.62 : x
  2. Step 2: Convert to fraction form
    28,071.42/38,738.63 = 15,324.62/x
  3. Step 3: Cross multiply
    28,071.42x = 38,738.63 × 15,324.62
  4. Step 4: Simplify right side
    28,071.42x = 593,654,590.38
  5. Step 5: Solve for x
    x = 593,654,590.38/28,071.42
  6. Step 6: Final answer
    x = 21,148.01

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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.