Home / 28,114.64-38,796.76-15,536.96

Finding the Fourth Proportional to 28,114.64, 38,796.76 and 15,536.96

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Solution

The fourth proportional to 28,114.64, 38,796.76 and 15,536.96 is: 21,440.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.64 : 38,796.76 = 15,536.96 : x
  2. Step 2: Convert to fraction form
    28,114.64/38,796.76 = 15,536.96/x
  3. Step 3: Cross multiply
    28,114.64x = 38,796.76 × 15,536.96
  4. Step 4: Simplify right side
    28,114.64x = 602,783,708.25
  5. Step 5: Solve for x
    x = 602,783,708.25/28,114.64
  6. Step 6: Final answer
    x = 21,440.21

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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.