Home / 28,066.44-38,721.78-18,000.32

Finding the Fourth Proportional to 28,066.44, 38,721.78 and 18,000.32

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Solution

The fourth proportional to 28,066.44, 38,721.78 and 18,000.32 is: 24,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.44 : 38,721.78 = 18,000.32 : x
  2. Step 2: Convert to fraction form
    28,066.44/38,721.78 = 18,000.32/x
  3. Step 3: Cross multiply
    28,066.44x = 38,721.78 × 18,000.32
  4. Step 4: Simplify right side
    28,066.44x = 697,004,430.97
  5. Step 5: Solve for x
    x = 697,004,430.97/28,066.44
  6. Step 6: Final answer
    x = 24,834.09

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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.