Home / 22,969.12-31,698.14-12,899.35

Finding the Fourth Proportional to 22,969.12, 31,698.14 and 12,899.35

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Solution

The fourth proportional to 22,969.12, 31,698.14 and 12,899.35 is: 17,801.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,969.12 : 31,698.14 = 12,899.35 : x
  2. Step 2: Convert to fraction form
    22,969.12/31,698.14 = 12,899.35/x
  3. Step 3: Cross multiply
    22,969.12x = 31,698.14 × 12,899.35
  4. Step 4: Simplify right side
    22,969.12x = 408,885,243.72
  5. Step 5: Solve for x
    x = 408,885,243.72/22,969.12
  6. Step 6: Final answer
    x = 17,801.52

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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.