Home / 28,192.64-42,272.56-10,663.84

Finding the Fourth Proportional to 28,192.64, 42,272.56 and 10,663.84

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Solution

The fourth proportional to 28,192.64, 42,272.56 and 10,663.84 is: 15,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.64 : 42,272.56 = 10,663.84 : x
  2. Step 2: Convert to fraction form
    28,192.64/42,272.56 = 10,663.84/x
  3. Step 3: Cross multiply
    28,192.64x = 42,272.56 × 10,663.84
  4. Step 4: Simplify right side
    28,192.64x = 450,787,584.63
  5. Step 5: Solve for x
    x = 450,787,584.63/28,192.64
  6. Step 6: Final answer
    x = 15,989.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.