Home / 22,918.40-31,627.12-12,846.82

Finding the Fourth Proportional to 22,918.40, 31,627.12 and 12,846.82

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Solution

The fourth proportional to 22,918.40, 31,627.12 and 12,846.82 is: 17,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,918.40 : 31,627.12 = 12,846.82 : x
  2. Step 2: Convert to fraction form
    22,918.40/31,627.12 = 12,846.82/x
  3. Step 3: Cross multiply
    22,918.40x = 31,627.12 × 12,846.82
  4. Step 4: Simplify right side
    22,918.40x = 406,307,917.76
  5. Step 5: Solve for x
    x = 406,307,917.76/22,918.40
  6. Step 6: Final answer
    x = 17,728.46

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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.