Home / 28,529.76-42,800-10,998.08

Finding the Fourth Proportional to 28,529.76, 42,800 and 10,998.08

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Solution

The fourth proportional to 28,529.76, 42,800 and 10,998.08 is: 16,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.76 : 42,800 = 10,998.08 : x
  2. Step 2: Convert to fraction form
    28,529.76/42,800 = 10,998.08/x
  3. Step 3: Cross multiply
    28,529.76x = 42,800 × 10,998.08
  4. Step 4: Simplify right side
    28,529.76x = 470,717,824
  5. Step 5: Solve for x
    x = 470,717,824/28,529.76
  6. Step 6: Final answer
    x = 16,499.19

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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.