Home / 28,174.32-38,881.44-15,600.24

Finding the Fourth Proportional to 28,174.32, 38,881.44 and 15,600.24

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Solution

The fourth proportional to 28,174.32, 38,881.44 and 15,600.24 is: 21,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.32 : 38,881.44 = 15,600.24 : x
  2. Step 2: Convert to fraction form
    28,174.32/38,881.44 = 15,600.24/x
  3. Step 3: Cross multiply
    28,174.32x = 38,881.44 × 15,600.24
  4. Step 4: Simplify right side
    28,174.32x = 606,559,795.55
  5. Step 5: Solve for x
    x = 606,559,795.55/28,174.32
  6. Step 6: Final answer
    x = 21,528.82

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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.