Home / 28,673.18-43,019.79-11,155.28

Finding the Fourth Proportional to 28,673.18, 43,019.79 and 11,155.28

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Solution

The fourth proportional to 28,673.18, 43,019.79 and 11,155.28 is: 16,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.18 : 43,019.79 = 11,155.28 : x
  2. Step 2: Convert to fraction form
    28,673.18/43,019.79 = 11,155.28/x
  3. Step 3: Cross multiply
    28,673.18x = 43,019.79 × 11,155.28
  4. Step 4: Simplify right side
    28,673.18x = 479,897,802.99
  5. Step 5: Solve for x
    x = 479,897,802.99/28,673.18
  6. Step 6: Final answer
    x = 16,736.82

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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.