Home / 28,886.73-39,862.96-16,139.13

Finding the Fourth Proportional to 28,886.73, 39,862.96 and 16,139.13

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Solution

The fourth proportional to 28,886.73, 39,862.96 and 16,139.13 is: 22,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.73 : 39,862.96 = 16,139.13 : x
  2. Step 2: Convert to fraction form
    28,886.73/39,862.96 = 16,139.13/x
  3. Step 3: Cross multiply
    28,886.73x = 39,862.96 × 16,139.13
  4. Step 4: Simplify right side
    28,886.73x = 643,353,493.62
  5. Step 5: Solve for x
    x = 643,353,493.62/28,886.73
  6. Step 6: Final answer
    x = 22,271.59

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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.