Home / 22,970.16-31,698.84-12,899.58

Finding the Fourth Proportional to 22,970.16, 31,698.84 and 12,899.58

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Solution

The fourth proportional to 22,970.16, 31,698.84 and 12,899.58 is: 17,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.16 : 31,698.84 = 12,899.58 : x
  2. Step 2: Convert to fraction form
    22,970.16/31,698.84 = 12,899.58/x
  3. Step 3: Cross multiply
    22,970.16x = 31,698.84 × 12,899.58
  4. Step 4: Simplify right side
    22,970.16x = 408,901,722.49
  5. Step 5: Solve for x
    x = 408,901,722.49/22,970.16
  6. Step 6: Final answer
    x = 17,801.43

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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.