Home / 20,088.62-27,712.96-12,530.06

Finding the Fourth Proportional to 20,088.62, 27,712.96 and 12,530.06

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Solution

The fourth proportional to 20,088.62, 27,712.96 and 12,530.06 is: 17,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.62 : 27,712.96 = 12,530.06 : x
  2. Step 2: Convert to fraction form
    20,088.62/27,712.96 = 12,530.06/x
  3. Step 3: Cross multiply
    20,088.62x = 27,712.96 × 12,530.06
  4. Step 4: Simplify right side
    20,088.62x = 347,244,881.69
  5. Step 5: Solve for x
    x = 347,244,881.69/20,088.62
  6. Step 6: Final answer
    x = 17,285.66

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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.