Home / 33,420.30-50,106.15-13,688.70

Finding the Fourth Proportional to 33,420.30, 50,106.15 and 13,688.70

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Solution

The fourth proportional to 33,420.30, 50,106.15 and 13,688.70 is: 20,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.30 : 50,106.15 = 13,688.70 : x
  2. Step 2: Convert to fraction form
    33,420.30/50,106.15 = 13,688.70/x
  3. Step 3: Cross multiply
    33,420.30x = 50,106.15 × 13,688.70
  4. Step 4: Simplify right side
    33,420.30x = 685,888,055.51
  5. Step 5: Solve for x
    x = 685,888,055.51/33,420.30
  6. Step 6: Final answer
    x = 20,523.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.