Home / 28,473.40-42,714.54-13,679.56

Finding the Fourth Proportional to 28,473.40, 42,714.54 and 13,679.56

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Solution

The fourth proportional to 28,473.40, 42,714.54 and 13,679.56 is: 20,521.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.40 : 42,714.54 = 13,679.56 : x
  2. Step 2: Convert to fraction form
    28,473.40/42,714.54 = 13,679.56/x
  3. Step 3: Cross multiply
    28,473.40x = 42,714.54 × 13,679.56
  4. Step 4: Simplify right side
    28,473.40x = 584,316,112.80
  5. Step 5: Solve for x
    x = 584,316,112.80/28,473.40
  6. Step 6: Final answer
    x = 20,521.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.