Home / 28,282.01-39,029.27-15,706.76

Finding the Fourth Proportional to 28,282.01, 39,029.27 and 15,706.76

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Solution

The fourth proportional to 28,282.01, 39,029.27 and 15,706.76 is: 21,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.01 : 39,029.27 = 15,706.76 : x
  2. Step 2: Convert to fraction form
    28,282.01/39,029.27 = 15,706.76/x
  3. Step 3: Cross multiply
    28,282.01x = 39,029.27 × 15,706.76
  4. Step 4: Simplify right side
    28,282.01x = 613,023,298.33
  5. Step 5: Solve for x
    x = 613,023,298.33/28,282.01
  6. Step 6: Final answer
    x = 21,675.38

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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.