Home / 51,580.38-71,184.35-28,920.83

Finding the Fourth Proportional to 51,580.38, 71,184.35 and 28,920.83

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Solution

The fourth proportional to 51,580.38, 71,184.35 and 28,920.83 is: 39,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,580.38 : 71,184.35 = 28,920.83 : x
  2. Step 2: Convert to fraction form
    51,580.38/71,184.35 = 28,920.83/x
  3. Step 3: Cross multiply
    51,580.38x = 71,184.35 × 28,920.83
  4. Step 4: Simplify right side
    51,580.38x = 2,058,710,601.80
  5. Step 5: Solve for x
    x = 2,058,710,601.80/51,580.38
  6. Step 6: Final answer
    x = 39,912.67

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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.