Home / 28,185.84-42,226.56-14,129.46

Finding the Fourth Proportional to 28,185.84, 42,226.56 and 14,129.46

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Solution

The fourth proportional to 28,185.84, 42,226.56 and 14,129.46 is: 21,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.84 : 42,226.56 = 14,129.46 : x
  2. Step 2: Convert to fraction form
    28,185.84/42,226.56 = 14,129.46/x
  3. Step 3: Cross multiply
    28,185.84x = 42,226.56 × 14,129.46
  4. Step 4: Simplify right side
    28,185.84x = 596,638,490.46
  5. Step 5: Solve for x
    x = 596,638,490.46/28,185.84
  6. Step 6: Final answer
    x = 21,168.02

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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.