Home / 28,927.05-39,918.80-16,351.80

Finding the Fourth Proportional to 28,927.05, 39,918.80 and 16,351.80

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Solution

The fourth proportional to 28,927.05, 39,918.80 and 16,351.80 is: 22,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.05 : 39,918.80 = 16,351.80 : x
  2. Step 2: Convert to fraction form
    28,927.05/39,918.80 = 16,351.80/x
  3. Step 3: Cross multiply
    28,927.05x = 39,918.80 × 16,351.80
  4. Step 4: Simplify right side
    28,927.05x = 652,744,233.84
  5. Step 5: Solve for x
    x = 652,744,233.84/28,927.05
  6. Step 6: Final answer
    x = 22,565.18

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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.