Home / 28,538.36-42,789.32-13,717.79

Finding the Fourth Proportional to 28,538.36, 42,789.32 and 13,717.79

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Solution

The fourth proportional to 28,538.36, 42,789.32 and 13,717.79 is: 20,567.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.36 : 42,789.32 = 13,717.79 : x
  2. Step 2: Convert to fraction form
    28,538.36/42,789.32 = 13,717.79/x
  3. Step 3: Cross multiply
    28,538.36x = 42,789.32 × 13,717.79
  4. Step 4: Simplify right side
    28,538.36x = 586,974,837.41
  5. Step 5: Solve for x
    x = 586,974,837.41/28,538.36
  6. Step 6: Final answer
    x = 20,567.92

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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.