Home / 22,712.40-31,330.80-16,426.80

Finding the Fourth Proportional to 22,712.40, 31,330.80 and 16,426.80

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Solution

The fourth proportional to 22,712.40, 31,330.80 and 16,426.80 is: 22,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.40 : 31,330.80 = 16,426.80 : x
  2. Step 2: Convert to fraction form
    22,712.40/31,330.80 = 16,426.80/x
  3. Step 3: Cross multiply
    22,712.40x = 31,330.80 × 16,426.80
  4. Step 4: Simplify right side
    22,712.40x = 514,664,785.44
  5. Step 5: Solve for x
    x = 514,664,785.44/22,712.40
  6. Step 6: Final answer
    x = 22,660.08

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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.