Home / 20,724.89-31,068.87-9,625.53

Finding the Fourth Proportional to 20,724.89, 31,068.87 and 9,625.53

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Solution

The fourth proportional to 20,724.89, 31,068.87 and 9,625.53 is: 14,429.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.89 : 31,068.87 = 9,625.53 : x
  2. Step 2: Convert to fraction form
    20,724.89/31,068.87 = 9,625.53/x
  3. Step 3: Cross multiply
    20,724.89x = 31,068.87 × 9,625.53
  4. Step 4: Simplify right side
    20,724.89x = 299,054,340.25
  5. Step 5: Solve for x
    x = 299,054,340.25/20,724.89
  6. Step 6: Final answer
    x = 14,429.72

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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.