Home / 22,941.51-31,658.90-13,386.96

Finding the Fourth Proportional to 22,941.51, 31,658.90 and 13,386.96

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Solution

The fourth proportional to 22,941.51, 31,658.90 and 13,386.96 is: 18,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,941.51 : 31,658.90 = 13,386.96 : x
  2. Step 2: Convert to fraction form
    22,941.51/31,658.90 = 13,386.96/x
  3. Step 3: Cross multiply
    22,941.51x = 31,658.90 × 13,386.96
  4. Step 4: Simplify right side
    22,941.51x = 423,816,361.01
  5. Step 5: Solve for x
    x = 423,816,361.01/22,941.51
  6. Step 6: Final answer
    x = 18,473.78

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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.