Home / 22,618.84-31,213.39-13,058.40

Finding the Fourth Proportional to 22,618.84, 31,213.39 and 13,058.40

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Solution

The fourth proportional to 22,618.84, 31,213.39 and 13,058.40 is: 18,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,618.84 : 31,213.39 = 13,058.40 : x
  2. Step 2: Convert to fraction form
    22,618.84/31,213.39 = 13,058.40/x
  3. Step 3: Cross multiply
    22,618.84x = 31,213.39 × 13,058.40
  4. Step 4: Simplify right side
    22,618.84x = 407,597,065.35
  5. Step 5: Solve for x
    x = 407,597,065.35/22,618.84
  6. Step 6: Final answer
    x = 18,020.25

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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.