Home / 22,687.14-31,307.66-12,615.06

Finding the Fourth Proportional to 22,687.14, 31,307.66 and 12,615.06

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Solution

The fourth proportional to 22,687.14, 31,307.66 and 12,615.06 is: 17,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.14 : 31,307.66 = 12,615.06 : x
  2. Step 2: Convert to fraction form
    22,687.14/31,307.66 = 12,615.06/x
  3. Step 3: Cross multiply
    22,687.14x = 31,307.66 × 12,615.06
  4. Step 4: Simplify right side
    22,687.14x = 394,948,009.36
  5. Step 5: Solve for x
    x = 394,948,009.36/22,687.14
  6. Step 6: Final answer
    x = 17,408.45

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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.