Home / 18,784.74-28,178.01-15,491.82

Finding the Fourth Proportional to 18,784.74, 28,178.01 and 15,491.82

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Solution

The fourth proportional to 18,784.74, 28,178.01 and 15,491.82 is: 23,238.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.74 : 28,178.01 = 15,491.82 : x
  2. Step 2: Convert to fraction form
    18,784.74/28,178.01 = 15,491.82/x
  3. Step 3: Cross multiply
    18,784.74x = 28,178.01 × 15,491.82
  4. Step 4: Simplify right side
    18,784.74x = 436,528,658.88
  5. Step 5: Solve for x
    x = 436,528,658.88/18,784.74
  6. Step 6: Final answer
    x = 23,238.47

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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.