Home / 22,686.99-31,308.77-12,615.85

Finding the Fourth Proportional to 22,686.99, 31,308.77 and 12,615.85

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Solution

The fourth proportional to 22,686.99, 31,308.77 and 12,615.85 is: 17,410.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.99 : 31,308.77 = 12,615.85 : x
  2. Step 2: Convert to fraction form
    22,686.99/31,308.77 = 12,615.85/x
  3. Step 3: Cross multiply
    22,686.99x = 31,308.77 × 12,615.85
  4. Step 4: Simplify right side
    22,686.99x = 394,986,769.37
  5. Step 5: Solve for x
    x = 394,986,769.37/22,686.99
  6. Step 6: Final answer
    x = 17,410.28

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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.