Home / 28,278.68-39,022.82-16,340.08

Finding the Fourth Proportional to 28,278.68, 39,022.82 and 16,340.08

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Solution

The fourth proportional to 28,278.68, 39,022.82 and 16,340.08 is: 22,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.68 : 39,022.82 = 16,340.08 : x
  2. Step 2: Convert to fraction form
    28,278.68/39,022.82 = 16,340.08/x
  3. Step 3: Cross multiply
    28,278.68x = 39,022.82 × 16,340.08
  4. Step 4: Simplify right side
    28,278.68x = 637,636,000.63
  5. Step 5: Solve for x
    x = 637,636,000.63/28,278.68
  6. Step 6: Final answer
    x = 22,548.29

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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.