Home / 20,208.40-30,312.61-6,168.51

Finding the Fourth Proportional to 20,208.40, 30,312.61 and 6,168.51

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Solution

The fourth proportional to 20,208.40, 30,312.61 and 6,168.51 is: 9,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.40 : 30,312.61 = 6,168.51 : x
  2. Step 2: Convert to fraction form
    20,208.40/30,312.61 = 6,168.51/x
  3. Step 3: Cross multiply
    20,208.40x = 30,312.61 × 6,168.51
  4. Step 4: Simplify right side
    20,208.40x = 186,983,622.49
  5. Step 5: Solve for x
    x = 186,983,622.49/20,208.40
  6. Step 6: Final answer
    x = 9,252.77

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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.