Home / 38,920.51-58,388.97-12,623.21

Finding the Fourth Proportional to 38,920.51, 58,388.97 and 12,623.21

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Solution

The fourth proportional to 38,920.51, 58,388.97 and 12,623.21 is: 18,937.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,920.51 : 58,388.97 = 12,623.21 : x
  2. Step 2: Convert to fraction form
    38,920.51/58,388.97 = 12,623.21/x
  3. Step 3: Cross multiply
    38,920.51x = 58,388.97 × 12,623.21
  4. Step 4: Simplify right side
    38,920.51x = 737,056,204.34
  5. Step 5: Solve for x
    x = 737,056,204.34/38,920.51
  6. Step 6: Final answer
    x = 18,937.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.