Home / 28,215.54-42,328.54-14,185.46

Finding the Fourth Proportional to 28,215.54, 42,328.54 and 14,185.46

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Solution

The fourth proportional to 28,215.54, 42,328.54 and 14,185.46 is: 21,280.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.54 : 42,328.54 = 14,185.46 : x
  2. Step 2: Convert to fraction form
    28,215.54/42,328.54 = 14,185.46/x
  3. Step 3: Cross multiply
    28,215.54x = 42,328.54 × 14,185.46
  4. Step 4: Simplify right side
    28,215.54x = 600,449,934.58
  5. Step 5: Solve for x
    x = 600,449,934.58/28,215.54
  6. Step 6: Final answer
    x = 21,280.82

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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.