Home / 28,218.45-42,328.04-19,451.01

Finding the Fourth Proportional to 28,218.45, 42,328.04 and 19,451.01

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Solution

The fourth proportional to 28,218.45, 42,328.04 and 19,451.01 is: 29,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.45 : 42,328.04 = 19,451.01 : x
  2. Step 2: Convert to fraction form
    28,218.45/42,328.04 = 19,451.01/x
  3. Step 3: Cross multiply
    28,218.45x = 42,328.04 × 19,451.01
  4. Step 4: Simplify right side
    28,218.45x = 823,323,032.07
  5. Step 5: Solve for x
    x = 823,323,032.07/28,218.45
  6. Step 6: Final answer
    x = 29,176.76

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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.