Home / 39,862.46-55,010.12-21,958.67

Finding the Fourth Proportional to 39,862.46, 55,010.12 and 21,958.67

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Solution

The fourth proportional to 39,862.46, 55,010.12 and 21,958.67 is: 30,302.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.46 : 55,010.12 = 21,958.67 : x
  2. Step 2: Convert to fraction form
    39,862.46/55,010.12 = 21,958.67/x
  3. Step 3: Cross multiply
    39,862.46x = 55,010.12 × 21,958.67
  4. Step 4: Simplify right side
    39,862.46x = 1,207,949,264.16
  5. Step 5: Solve for x
    x = 1,207,949,264.16/39,862.46
  6. Step 6: Final answer
    x = 30,302.93

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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.