Home / 22,696.40-31,319.56-12,624.64

Finding the Fourth Proportional to 22,696.40, 31,319.56 and 12,624.64

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Solution

The fourth proportional to 22,696.40, 31,319.56 and 12,624.64 is: 17,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,696.40 : 31,319.56 = 12,624.64 : x
  2. Step 2: Convert to fraction form
    22,696.40/31,319.56 = 12,624.64/x
  3. Step 3: Cross multiply
    22,696.40x = 31,319.56 × 12,624.64
  4. Step 4: Simplify right side
    22,696.40x = 395,398,169.96
  5. Step 5: Solve for x
    x = 395,398,169.96/22,696.40
  6. Step 6: Final answer
    x = 17,421.18

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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.