Home / 20,315.04-30,476.39-9,222.51

Finding the Fourth Proportional to 20,315.04, 30,476.39 and 9,222.51

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Solution

The fourth proportional to 20,315.04, 30,476.39 and 9,222.51 is: 13,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.04 : 30,476.39 = 9,222.51 : x
  2. Step 2: Convert to fraction form
    20,315.04/30,476.39 = 9,222.51/x
  3. Step 3: Cross multiply
    20,315.04x = 30,476.39 × 9,222.51
  4. Step 4: Simplify right side
    20,315.04x = 281,068,765.43
  5. Step 5: Solve for x
    x = 281,068,765.43/20,315.04
  6. Step 6: Final answer
    x = 13,835.50

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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.