Home / 22,698.76-31,308.70-13,730.80

Finding the Fourth Proportional to 22,698.76, 31,308.70 and 13,730.80

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Solution

The fourth proportional to 22,698.76, 31,308.70 and 13,730.80 is: 18,939.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,698.76 : 31,308.70 = 13,730.80 : x
  2. Step 2: Convert to fraction form
    22,698.76/31,308.70 = 13,730.80/x
  3. Step 3: Cross multiply
    22,698.76x = 31,308.70 × 13,730.80
  4. Step 4: Simplify right side
    22,698.76x = 429,893,497.96
  5. Step 5: Solve for x
    x = 429,893,497.96/22,698.76
  6. Step 6: Final answer
    x = 18,939.07

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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.