Home / 28,308.44-39,068.10-15,734

Finding the Fourth Proportional to 28,308.44, 39,068.10 and 15,734

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Solution

The fourth proportional to 28,308.44, 39,068.10 and 15,734 is: 21,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.44 : 39,068.10 = 15,734 : x
  2. Step 2: Convert to fraction form
    28,308.44/39,068.10 = 15,734/x
  3. Step 3: Cross multiply
    28,308.44x = 39,068.10 × 15,734
  4. Step 4: Simplify right side
    28,308.44x = 614,697,485.40
  5. Step 5: Solve for x
    x = 614,697,485.40/28,308.44
  6. Step 6: Final answer
    x = 21,714.28

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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.