Home / 22,579.07-31,158.78-12,507.48

Finding the Fourth Proportional to 22,579.07, 31,158.78 and 12,507.48

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Solution

The fourth proportional to 22,579.07, 31,158.78 and 12,507.48 is: 17,260.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.07 : 31,158.78 = 12,507.48 : x
  2. Step 2: Convert to fraction form
    22,579.07/31,158.78 = 12,507.48/x
  3. Step 3: Cross multiply
    22,579.07x = 31,158.78 × 12,507.48
  4. Step 4: Simplify right side
    22,579.07x = 389,717,817.67
  5. Step 5: Solve for x
    x = 389,717,817.67/22,579.07
  6. Step 6: Final answer
    x = 17,260.14

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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.