Home / 28,519.53-42,743.66-13,724.48

Finding the Fourth Proportional to 28,519.53, 42,743.66 and 13,724.48

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Solution

The fourth proportional to 28,519.53, 42,743.66 and 13,724.48 is: 20,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.53 : 42,743.66 = 13,724.48 : x
  2. Step 2: Convert to fraction form
    28,519.53/42,743.66 = 13,724.48/x
  3. Step 3: Cross multiply
    28,519.53x = 42,743.66 × 13,724.48
  4. Step 4: Simplify right side
    28,519.53x = 586,634,224.46
  5. Step 5: Solve for x
    x = 586,634,224.46/28,519.53
  6. Step 6: Final answer
    x = 20,569.56

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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.