Home / 28,557.33-42,853.71-13,767.75

Finding the Fourth Proportional to 28,557.33, 42,853.71 and 13,767.75

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Solution

The fourth proportional to 28,557.33, 42,853.71 and 13,767.75 is: 20,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.33 : 42,853.71 = 13,767.75 : x
  2. Step 2: Convert to fraction form
    28,557.33/42,853.71 = 13,767.75/x
  3. Step 3: Cross multiply
    28,557.33x = 42,853.71 × 13,767.75
  4. Step 4: Simplify right side
    28,557.33x = 589,999,165.85
  5. Step 5: Solve for x
    x = 589,999,165.85/28,557.33
  6. Step 6: Final answer
    x = 20,660.17

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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.