Home / 19,178.34-28,729.21-15,236.28

Finding the Fourth Proportional to 19,178.34, 28,729.21 and 15,236.28

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Solution

The fourth proportional to 19,178.34, 28,729.21 and 15,236.28 is: 22,823.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.34 : 28,729.21 = 15,236.28 : x
  2. Step 2: Convert to fraction form
    19,178.34/28,729.21 = 15,236.28/x
  3. Step 3: Cross multiply
    19,178.34x = 28,729.21 × 15,236.28
  4. Step 4: Simplify right side
    19,178.34x = 437,726,287.74
  5. Step 5: Solve for x
    x = 437,726,287.74/19,178.34
  6. Step 6: Final answer
    x = 22,823.99

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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.