Home / 20,336.13-28,060.63-11,384.01

Finding the Fourth Proportional to 20,336.13, 28,060.63 and 11,384.01

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Solution

The fourth proportional to 20,336.13, 28,060.63 and 11,384.01 is: 15,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.13 : 28,060.63 = 11,384.01 : x
  2. Step 2: Convert to fraction form
    20,336.13/28,060.63 = 11,384.01/x
  3. Step 3: Cross multiply
    20,336.13x = 28,060.63 × 11,384.01
  4. Step 4: Simplify right side
    20,336.13x = 319,442,464.07
  5. Step 5: Solve for x
    x = 319,442,464.07/20,336.13
  6. Step 6: Final answer
    x = 15,708.12

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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.