Home / 22,778.76-31,434.96-12,708.08

Finding the Fourth Proportional to 22,778.76, 31,434.96 and 12,708.08

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Solution

The fourth proportional to 22,778.76, 31,434.96 and 12,708.08 is: 17,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.76 : 31,434.96 = 12,708.08 : x
  2. Step 2: Convert to fraction form
    22,778.76/31,434.96 = 12,708.08/x
  3. Step 3: Cross multiply
    22,778.76x = 31,434.96 × 12,708.08
  4. Step 4: Simplify right side
    22,778.76x = 399,477,986.48
  5. Step 5: Solve for x
    x = 399,477,986.48/22,778.76
  6. Step 6: Final answer
    x = 17,537.30

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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.