Home / 22,750.07-31,395.60-12,679.54

Finding the Fourth Proportional to 22,750.07, 31,395.60 and 12,679.54

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Solution

The fourth proportional to 22,750.07, 31,395.60 and 12,679.54 is: 17,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.07 : 31,395.60 = 12,679.54 : x
  2. Step 2: Convert to fraction form
    22,750.07/31,395.60 = 12,679.54/x
  3. Step 3: Cross multiply
    22,750.07x = 31,395.60 × 12,679.54
  4. Step 4: Simplify right side
    22,750.07x = 398,081,687.54
  5. Step 5: Solve for x
    x = 398,081,687.54/22,750.07
  6. Step 6: Final answer
    x = 17,498.05

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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.