Home / 39,283.92-54,211.95-21,379.14

Finding the Fourth Proportional to 39,283.92, 54,211.95 and 21,379.14

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Solution

The fourth proportional to 39,283.92, 54,211.95 and 21,379.14 is: 29,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,283.92 : 54,211.95 = 21,379.14 : x
  2. Step 2: Convert to fraction form
    39,283.92/54,211.95 = 21,379.14/x
  3. Step 3: Cross multiply
    39,283.92x = 54,211.95 × 21,379.14
  4. Step 4: Simplify right side
    39,283.92x = 1,159,004,868.72
  5. Step 5: Solve for x
    x = 1,159,004,868.72/39,283.92
  6. Step 6: Final answer
    x = 29,503.29

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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.