Home / 22,580.21-31,157.74-13,020.45

Finding the Fourth Proportional to 22,580.21, 31,157.74 and 13,020.45

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Solution

The fourth proportional to 22,580.21, 31,157.74 and 13,020.45 is: 17,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580.21 : 31,157.74 = 13,020.45 : x
  2. Step 2: Convert to fraction form
    22,580.21/31,157.74 = 13,020.45/x
  3. Step 3: Cross multiply
    22,580.21x = 31,157.74 × 13,020.45
  4. Step 4: Simplify right side
    22,580.21x = 405,687,795.78
  5. Step 5: Solve for x
    x = 405,687,795.78/22,580.21
  6. Step 6: Final answer
    x = 17,966.52

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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.