Home / 28,472.73-42,718.23-13,682.72

Finding the Fourth Proportional to 28,472.73, 42,718.23 and 13,682.72

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Solution

The fourth proportional to 28,472.73, 42,718.23 and 13,682.72 is: 20,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.73 : 42,718.23 = 13,682.72 : x
  2. Step 2: Convert to fraction form
    28,472.73/42,718.23 = 13,682.72/x
  3. Step 3: Cross multiply
    28,472.73x = 42,718.23 × 13,682.72
  4. Step 4: Simplify right side
    28,472.73x = 584,501,366.39
  5. Step 5: Solve for x
    x = 584,501,366.39/28,472.73
  6. Step 6: Final answer
    x = 20,528.46

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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.