Home / 28,262.06-39,002.13-15,516.43

Finding the Fourth Proportional to 28,262.06, 39,002.13 and 15,516.43

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Solution

The fourth proportional to 28,262.06, 39,002.13 and 15,516.43 is: 21,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,262.06 : 39,002.13 = 15,516.43 : x
  2. Step 2: Convert to fraction form
    28,262.06/39,002.13 = 15,516.43/x
  3. Step 3: Cross multiply
    28,262.06x = 39,002.13 × 15,516.43
  4. Step 4: Simplify right side
    28,262.06x = 605,173,722.49
  5. Step 5: Solve for x
    x = 605,173,722.49/28,262.06
  6. Step 6: Final answer
    x = 21,412.94

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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.