Home / 20,182.84-30,239.02-13,151.63

Finding the Fourth Proportional to 20,182.84, 30,239.02 and 13,151.63

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Solution

The fourth proportional to 20,182.84, 30,239.02 and 13,151.63 is: 19,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.84 : 30,239.02 = 13,151.63 : x
  2. Step 2: Convert to fraction form
    20,182.84/30,239.02 = 13,151.63/x
  3. Step 3: Cross multiply
    20,182.84x = 30,239.02 × 13,151.63
  4. Step 4: Simplify right side
    20,182.84x = 397,692,494.64
  5. Step 5: Solve for x
    x = 397,692,494.64/20,182.84
  6. Step 6: Final answer
    x = 19,704.49

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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.