Home / 28,008.78-42,010.73-9,282.66

Finding the Fourth Proportional to 28,008.78, 42,010.73 and 9,282.66

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Solution

The fourth proportional to 28,008.78, 42,010.73 and 9,282.66 is: 13,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.78 : 42,010.73 = 9,282.66 : x
  2. Step 2: Convert to fraction form
    28,008.78/42,010.73 = 9,282.66/x
  3. Step 3: Cross multiply
    28,008.78x = 42,010.73 × 9,282.66
  4. Step 4: Simplify right side
    28,008.78x = 389,971,322.94
  5. Step 5: Solve for x
    x = 389,971,322.94/28,008.78
  6. Step 6: Final answer
    x = 13,923.18

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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.