Home / 22,686.60-31,307.34-12,615.96

Finding the Fourth Proportional to 22,686.60, 31,307.34 and 12,615.96

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Solution

The fourth proportional to 22,686.60, 31,307.34 and 12,615.96 is: 17,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.60 : 31,307.34 = 12,615.96 : x
  2. Step 2: Convert to fraction form
    22,686.60/31,307.34 = 12,615.96/x
  3. Step 3: Cross multiply
    22,686.60x = 31,307.34 × 12,615.96
  4. Step 4: Simplify right side
    22,686.60x = 394,972,149.15
  5. Step 5: Solve for x
    x = 394,972,149.15/22,686.60
  6. Step 6: Final answer
    x = 17,409.93

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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.