Home / 22,679.40-31,298.52-12,607.80

Finding the Fourth Proportional to 22,679.40, 31,298.52 and 12,607.80

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Solution

The fourth proportional to 22,679.40, 31,298.52 and 12,607.80 is: 17,399.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.40 : 31,298.52 = 12,607.80 : x
  2. Step 2: Convert to fraction form
    22,679.40/31,298.52 = 12,607.80/x
  3. Step 3: Cross multiply
    22,679.40x = 31,298.52 × 12,607.80
  4. Step 4: Simplify right side
    22,679.40x = 394,605,480.46
  5. Step 5: Solve for x
    x = 394,605,480.46/22,679.40
  6. Step 6: Final answer
    x = 17,399.29

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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.