Home / 28,752.67-39,681.38-16,815.29

Finding the Fourth Proportional to 28,752.67, 39,681.38 and 16,815.29

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Solution

The fourth proportional to 28,752.67, 39,681.38 and 16,815.29 is: 23,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.67 : 39,681.38 = 16,815.29 : x
  2. Step 2: Convert to fraction form
    28,752.67/39,681.38 = 16,815.29/x
  3. Step 3: Cross multiply
    28,752.67x = 39,681.38 × 16,815.29
  4. Step 4: Simplify right side
    28,752.67x = 667,253,828.22
  5. Step 5: Solve for x
    x = 667,253,828.22/28,752.67
  6. Step 6: Final answer
    x = 23,206.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.