Home / 28,116.41-38,799.45-15,369.36

Finding the Fourth Proportional to 28,116.41, 38,799.45 and 15,369.36

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Solution

The fourth proportional to 28,116.41, 38,799.45 and 15,369.36 is: 21,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.41 : 38,799.45 = 15,369.36 : x
  2. Step 2: Convert to fraction form
    28,116.41/38,799.45 = 15,369.36/x
  3. Step 3: Cross multiply
    28,116.41x = 38,799.45 × 15,369.36
  4. Step 4: Simplify right side
    28,116.41x = 596,322,714.85
  5. Step 5: Solve for x
    x = 596,322,714.85/28,116.41
  6. Step 6: Final answer
    x = 21,209.07

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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.