Home / 28,008.66-38,650.82-15,261.63

Finding the Fourth Proportional to 28,008.66, 38,650.82 and 15,261.63

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Solution

The fourth proportional to 28,008.66, 38,650.82 and 15,261.63 is: 21,060.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.66 : 38,650.82 = 15,261.63 : x
  2. Step 2: Convert to fraction form
    28,008.66/38,650.82 = 15,261.63/x
  3. Step 3: Cross multiply
    28,008.66x = 38,650.82 × 15,261.63
  4. Step 4: Simplify right side
    28,008.66x = 589,874,437.73
  5. Step 5: Solve for x
    x = 589,874,437.73/28,008.66
  6. Step 6: Final answer
    x = 21,060.43

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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.