Home / 33,810.12-46,660.18-20,381.40

Finding the Fourth Proportional to 33,810.12, 46,660.18 and 20,381.40

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Solution

The fourth proportional to 33,810.12, 46,660.18 and 20,381.40 is: 28,127.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,810.12 : 46,660.18 = 20,381.40 : x
  2. Step 2: Convert to fraction form
    33,810.12/46,660.18 = 20,381.40/x
  3. Step 3: Cross multiply
    33,810.12x = 46,660.18 × 20,381.40
  4. Step 4: Simplify right side
    33,810.12x = 950,999,792.65
  5. Step 5: Solve for x
    x = 950,999,792.65/33,810.12
  6. Step 6: Final answer
    x = 28,127.67

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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.