Home / 28,463.54-39,277.64-15,714.66

Finding the Fourth Proportional to 28,463.54, 39,277.64 and 15,714.66

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Solution

The fourth proportional to 28,463.54, 39,277.64 and 15,714.66 is: 21,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.54 : 39,277.64 = 15,714.66 : x
  2. Step 2: Convert to fraction form
    28,463.54/39,277.64 = 15,714.66/x
  3. Step 3: Cross multiply
    28,463.54x = 39,277.64 × 15,714.66
  4. Step 4: Simplify right side
    28,463.54x = 617,234,679.63
  5. Step 5: Solve for x
    x = 617,234,679.63/28,463.54
  6. Step 6: Final answer
    x = 21,685.10

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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.