Home / 51,047.90-70,446.30-28,388.96

Finding the Fourth Proportional to 51,047.90, 70,446.30 and 28,388.96

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Solution

The fourth proportional to 51,047.90, 70,446.30 and 28,388.96 is: 39,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,047.90 : 70,446.30 = 28,388.96 : x
  2. Step 2: Convert to fraction form
    51,047.90/70,446.30 = 28,388.96/x
  3. Step 3: Cross multiply
    51,047.90x = 70,446.30 × 28,388.96
  4. Step 4: Simplify right side
    51,047.90x = 1,999,897,192.85
  5. Step 5: Solve for x
    x = 1,999,897,192.85/51,047.90
  6. Step 6: Final answer
    x = 39,176.87

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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.