Home / 20,848.20-31,278.70-16,467.40

Finding the Fourth Proportional to 20,848.20, 31,278.70 and 16,467.40

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Solution

The fourth proportional to 20,848.20, 31,278.70 and 16,467.40 is: 24,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.20 : 31,278.70 = 16,467.40 : x
  2. Step 2: Convert to fraction form
    20,848.20/31,278.70 = 16,467.40/x
  3. Step 3: Cross multiply
    20,848.20x = 31,278.70 × 16,467.40
  4. Step 4: Simplify right side
    20,848.20x = 515,078,864.38
  5. Step 5: Solve for x
    x = 515,078,864.38/20,848.20
  6. Step 6: Final answer
    x = 24,706.16

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1.5x scale

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.