Home / 21,566.05-29,750.25-12,607.70

Finding the Fourth Proportional to 21,566.05, 29,750.25 and 12,607.70

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Solution

The fourth proportional to 21,566.05, 29,750.25 and 12,607.70 is: 17,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.05 : 29,750.25 = 12,607.70 : x
  2. Step 2: Convert to fraction form
    21,566.05/29,750.25 = 12,607.70/x
  3. Step 3: Cross multiply
    21,566.05x = 29,750.25 × 12,607.70
  4. Step 4: Simplify right side
    21,566.05x = 375,082,226.93
  5. Step 5: Solve for x
    x = 375,082,226.93/21,566.05
  6. Step 6: Final answer
    x = 17,392.25

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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.